/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:31:21,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:31:21,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:31:21,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:31:21,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:31:21,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:31:21,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:31:21,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:31:21,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:31:21,553 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:31:21,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:31:21,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:31:21,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:31:21,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:31:21,555 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:31:21,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:31:21,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:31:21,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:31:21,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:31:21,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:31:21,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:31:21,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:31:21,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:31:21,557 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:31:21,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:31:21,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:31:21,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:31:21,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:31:21,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:31:21,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:31:21,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:31:21,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:31:21,561 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:31:21,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:31:21,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:31:21,561 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:31:21,561 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:31:21,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:31:21,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:31:21,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:31:21,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:31:21,762 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:31:21,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2023-12-22 02:31:22,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:31:22,970 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:31:22,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2023-12-22 02:31:22,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984b3a6a6/b1fdfc594e384087adf8d8c9b14d3062/FLAGd25add8a6 [2023-12-22 02:31:23,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984b3a6a6/b1fdfc594e384087adf8d8c9b14d3062 [2023-12-22 02:31:23,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:31:23,013 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:31:23,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:31:23,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:31:23,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:31:23,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ab551b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23, skipping insertion in model container [2023-12-22 02:31:23,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:31:23,204 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c[913,926] [2023-12-22 02:31:23,252 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c[5977,5990] [2023-12-22 02:31:23,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:31:23,363 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:31:23,382 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c[913,926] [2023-12-22 02:31:23,391 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-1.c[5977,5990] [2023-12-22 02:31:23,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:31:23,452 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:31:23,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23 WrapperNode [2023-12-22 02:31:23,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:31:23,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:31:23,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:31:23,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:31:23,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,501 INFO L138 Inliner]: procedures = 65, calls = 72, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 810 [2023-12-22 02:31:23,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:31:23,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:31:23,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:31:23,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:31:23,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,534 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 02:31:23,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:31:23,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:31:23,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:31:23,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:31:23,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (1/1) ... [2023-12-22 02:31:23,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:31:23,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:31:23,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 02:31:23,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:31:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:31:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:31:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:31:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:31:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:31:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:31:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:31:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:31:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:31:23,786 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:31:23,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:31:24,367 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:31:24,408 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:31:24,408 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-12-22 02:31:24,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:31:24 BoogieIcfgContainer [2023-12-22 02:31:24,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:31:24,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:31:24,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:31:24,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:31:24,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:31:23" (1/3) ... [2023-12-22 02:31:24,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286da67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:31:24, skipping insertion in model container [2023-12-22 02:31:24,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:31:23" (2/3) ... [2023-12-22 02:31:24,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286da67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:31:24, skipping insertion in model container [2023-12-22 02:31:24,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:31:24" (3/3) ... [2023-12-22 02:31:24,414 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.08.cil-1.c [2023-12-22 02:31:24,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:31:24,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:31:24,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:31:24,467 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;@5f907afc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:31:24,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:31:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 279 states have (on average 1.7096774193548387) internal successors, (477), 284 states have internal predecessors, (477), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-22 02:31:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-22 02:31:24,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:24,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:24,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:24,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash 684512501, now seen corresponding path program 1 times [2023-12-22 02:31:24,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:24,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802541828] [2023-12-22 02:31:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:24,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:24,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:24,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:24,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 02:31:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:24,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:24,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:24,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:24,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:24,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:24,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802541828] [2023-12-22 02:31:24,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802541828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:24,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:24,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:24,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482123429] [2023-12-22 02:31:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:24,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:24,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:24,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:24,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:24,699 INFO L87 Difference]: Start difference. First operand has 319 states, 279 states have (on average 1.7096774193548387) internal successors, (477), 284 states have internal predecessors, (477), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-22 02:31:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:24,822 INFO L93 Difference]: Finished difference Result 620 states and 1032 transitions. [2023-12-22 02:31:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:24,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2023-12-22 02:31:24,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:24,844 INFO L225 Difference]: With dead ends: 620 [2023-12-22 02:31:24,844 INFO L226 Difference]: Without dead ends: 314 [2023-12-22 02:31:24,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:24,850 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 85 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:24,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 833 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:24,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-22 02:31:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-12-22 02:31:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 276 states have (on average 1.5905797101449275) internal successors, (439), 279 states have internal predecessors, (439), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-22 02:31:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 493 transitions. [2023-12-22 02:31:24,911 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 493 transitions. Word has length 37 [2023-12-22 02:31:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:24,912 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 493 transitions. [2023-12-22 02:31:24,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-22 02:31:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 493 transitions. [2023-12-22 02:31:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-22 02:31:24,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:24,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:24,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:31:25,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:25,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:25,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:25,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1366471497, now seen corresponding path program 1 times [2023-12-22 02:31:25,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:25,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827405678] [2023-12-22 02:31:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:25,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:25,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:25,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 02:31:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:25,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:25,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:25,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:25,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:25,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827405678] [2023-12-22 02:31:25,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827405678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:25,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:25,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110050713] [2023-12-22 02:31:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:25,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:25,249 INFO L87 Difference]: Start difference. First operand 314 states and 493 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:25,322 INFO L93 Difference]: Finished difference Result 423 states and 650 transitions. [2023-12-22 02:31:25,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:25,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-22 02:31:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:25,326 INFO L225 Difference]: With dead ends: 423 [2023-12-22 02:31:25,326 INFO L226 Difference]: Without dead ends: 367 [2023-12-22 02:31:25,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:25,327 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 470 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:25,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 533 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-22 02:31:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2023-12-22 02:31:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 319 states have (on average 1.561128526645768) internal successors, (498), 322 states have internal predecessors, (498), 32 states have call successors, (32), 11 states have call predecessors, (32), 10 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2023-12-22 02:31:25,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 564 transitions. [2023-12-22 02:31:25,348 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 564 transitions. Word has length 37 [2023-12-22 02:31:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:25,348 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 564 transitions. [2023-12-22 02:31:25,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 564 transitions. [2023-12-22 02:31:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 02:31:25,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:25,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:25,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:25,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:25,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:25,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash 926183912, now seen corresponding path program 1 times [2023-12-22 02:31:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210453019] [2023-12-22 02:31:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:25,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:25,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:25,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 02:31:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:25,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:25,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:25,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:25,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:25,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210453019] [2023-12-22 02:31:25,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210453019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:25,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446632754] [2023-12-22 02:31:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:25,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:25,670 INFO L87 Difference]: Start difference. First operand 363 states and 564 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:25,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:25,750 INFO L93 Difference]: Finished difference Result 563 states and 856 transitions. [2023-12-22 02:31:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:25,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-22 02:31:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:25,753 INFO L225 Difference]: With dead ends: 563 [2023-12-22 02:31:25,753 INFO L226 Difference]: Without dead ends: 460 [2023-12-22 02:31:25,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:25,757 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 467 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:25,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 519 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-12-22 02:31:25,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 456. [2023-12-22 02:31:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 400 states have (on average 1.5225) internal successors, (609), 403 states have internal predecessors, (609), 40 states have call successors, (40), 15 states have call predecessors, (40), 14 states have return successors, (46), 38 states have call predecessors, (46), 38 states have call successors, (46) [2023-12-22 02:31:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 695 transitions. [2023-12-22 02:31:25,788 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 695 transitions. Word has length 38 [2023-12-22 02:31:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:25,788 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 695 transitions. [2023-12-22 02:31:25,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 695 transitions. [2023-12-22 02:31:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 02:31:25,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:25,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:25,811 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 [2023-12-22 02:31:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:26,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2063654889, now seen corresponding path program 1 times [2023-12-22 02:31:26,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:26,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589362024] [2023-12-22 02:31:26,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:26,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:26,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:26,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:31:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:26,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:26,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:26,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:26,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589362024] [2023-12-22 02:31:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589362024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:26,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:26,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573533885] [2023-12-22 02:31:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:26,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:26,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:26,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:26,141 INFO L87 Difference]: Start difference. First operand 456 states and 695 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:26,234 INFO L93 Difference]: Finished difference Result 808 states and 1192 transitions. [2023-12-22 02:31:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-22 02:31:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:26,237 INFO L225 Difference]: With dead ends: 808 [2023-12-22 02:31:26,237 INFO L226 Difference]: Without dead ends: 612 [2023-12-22 02:31:26,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:26,238 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 57 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:26,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 907 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-22 02:31:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 561. [2023-12-22 02:31:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 493 states have (on average 1.4969574036511155) internal successors, (738), 498 states have internal predecessors, (738), 46 states have call successors, (46), 21 states have call predecessors, (46), 20 states have return successors, (54), 42 states have call predecessors, (54), 44 states have call successors, (54) [2023-12-22 02:31:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 838 transitions. [2023-12-22 02:31:26,261 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 838 transitions. Word has length 39 [2023-12-22 02:31:26,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:26,261 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 838 transitions. [2023-12-22 02:31:26,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:31:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 838 transitions. [2023-12-22 02:31:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 02:31:26,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:26,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:26,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:26,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:26,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -629290764, now seen corresponding path program 1 times [2023-12-22 02:31:26,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:26,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047257418] [2023-12-22 02:31:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:26,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:26,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:26,507 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 (6)] Waiting until timeout for monitored process [2023-12-22 02:31:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:26,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:26,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:26,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:26,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047257418] [2023-12-22 02:31:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047257418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:26,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:26,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482802667] [2023-12-22 02:31:26,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:26,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:26,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:26,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:26,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:26,612 INFO L87 Difference]: Start difference. First operand 561 states and 838 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:31:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:26,713 INFO L93 Difference]: Finished difference Result 809 states and 1188 transitions. [2023-12-22 02:31:26,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:26,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-22 02:31:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:26,731 INFO L225 Difference]: With dead ends: 809 [2023-12-22 02:31:26,731 INFO L226 Difference]: Without dead ends: 613 [2023-12-22 02:31:26,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:26,732 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 45 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:26,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 947 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-22 02:31:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2023-12-22 02:31:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 537 states have (on average 1.4692737430167597) internal successors, (789), 542 states have internal predecessors, (789), 51 states have call successors, (51), 24 states have call predecessors, (51), 23 states have return successors, (62), 47 states have call predecessors, (62), 49 states have call successors, (62) [2023-12-22 02:31:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 902 transitions. [2023-12-22 02:31:26,760 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 902 transitions. Word has length 54 [2023-12-22 02:31:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:26,761 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 902 transitions. [2023-12-22 02:31:26,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:31:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 902 transitions. [2023-12-22 02:31:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:31:26,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:26,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:26,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 02:31:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:26,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -88862144, now seen corresponding path program 1 times [2023-12-22 02:31:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:26,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454422923] [2023-12-22 02:31:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:26,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:26,969 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:26,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 02:31:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:27,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:27,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:31:27,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:27,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454422923] [2023-12-22 02:31:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454422923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:27,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:27,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445055470] [2023-12-22 02:31:27,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:27,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:27,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:27,126 INFO L87 Difference]: Start difference. First operand 613 states and 902 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:27,200 INFO L93 Difference]: Finished difference Result 1022 states and 1459 transitions. [2023-12-22 02:31:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:27,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-22 02:31:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:27,202 INFO L225 Difference]: With dead ends: 1022 [2023-12-22 02:31:27,202 INFO L226 Difference]: Without dead ends: 710 [2023-12-22 02:31:27,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:27,203 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 454 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:27,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 523 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-22 02:31:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2023-12-22 02:31:27,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 622 states have (on average 1.4340836012861737) internal successors, (892), 627 states have internal predecessors, (892), 58 states have call successors, (58), 29 states have call predecessors, (58), 28 states have return successors, (72), 54 states have call predecessors, (72), 56 states have call successors, (72) [2023-12-22 02:31:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1022 transitions. [2023-12-22 02:31:27,230 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1022 transitions. Word has length 59 [2023-12-22 02:31:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:27,230 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 1022 transitions. [2023-12-22 02:31:27,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1022 transitions. [2023-12-22 02:31:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:31:27,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:27,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:27,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:27,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:27,435 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:27,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -248733713, now seen corresponding path program 1 times [2023-12-22 02:31:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903721490] [2023-12-22 02:31:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:27,436 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 [2023-12-22 02:31:27,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:27,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:27,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 02:31:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:27,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:27,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:31:27,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:27,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:27,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903721490] [2023-12-22 02:31:27,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903721490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:27,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:27,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:27,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127617698] [2023-12-22 02:31:27,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:27,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:27,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:27,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:27,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:27,527 INFO L87 Difference]: Start difference. First operand 710 states and 1022 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:27,672 INFO L93 Difference]: Finished difference Result 1126 states and 1598 transitions. [2023-12-22 02:31:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:31:27,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:27,674 INFO L225 Difference]: With dead ends: 1126 [2023-12-22 02:31:27,674 INFO L226 Difference]: Without dead ends: 762 [2023-12-22 02:31:27,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:27,675 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 11 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:27,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1357 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-12-22 02:31:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 739. [2023-12-22 02:31:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 649 states have (on average 1.4175654853620956) internal successors, (920), 656 states have internal predecessors, (920), 58 states have call successors, (58), 29 states have call predecessors, (58), 30 states have return successors, (74), 54 states have call predecessors, (74), 56 states have call successors, (74) [2023-12-22 02:31:27,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1052 transitions. [2023-12-22 02:31:27,698 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1052 transitions. Word has length 60 [2023-12-22 02:31:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:27,699 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 1052 transitions. [2023-12-22 02:31:27,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1052 transitions. [2023-12-22 02:31:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:31:27,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:27,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:27,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:27,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:27,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:27,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1092739215, now seen corresponding path program 1 times [2023-12-22 02:31:27,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:27,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458874508] [2023-12-22 02:31:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:27,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:27,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 02:31:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:28,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:28,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:31:28,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:28,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:28,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458874508] [2023-12-22 02:31:28,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458874508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:28,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:28,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:28,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284880331] [2023-12-22 02:31:28,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:28,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:28,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:28,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:28,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:28,056 INFO L87 Difference]: Start difference. First operand 739 states and 1052 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:28,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:28,169 INFO L93 Difference]: Finished difference Result 1156 states and 1621 transitions. [2023-12-22 02:31:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:28,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:31:28,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:28,171 INFO L225 Difference]: With dead ends: 1156 [2023-12-22 02:31:28,172 INFO L226 Difference]: Without dead ends: 763 [2023-12-22 02:31:28,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:28,173 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 2 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:28,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1354 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-22 02:31:28,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 757. [2023-12-22 02:31:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 665 states have (on average 1.4) internal successors, (931), 674 states have internal predecessors, (931), 58 states have call successors, (58), 29 states have call predecessors, (58), 32 states have return successors, (76), 54 states have call predecessors, (76), 56 states have call successors, (76) [2023-12-22 02:31:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1065 transitions. [2023-12-22 02:31:28,214 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1065 transitions. Word has length 60 [2023-12-22 02:31:28,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:28,214 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1065 transitions. [2023-12-22 02:31:28,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:31:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1065 transitions. [2023-12-22 02:31:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:31:28,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:28,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:28,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:28,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:28,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 704900401, now seen corresponding path program 1 times [2023-12-22 02:31:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:28,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125051773] [2023-12-22 02:31:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:28,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:28,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:28,422 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:28,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:31:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:28,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:28,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:28,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:31:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:31:28,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125051773] [2023-12-22 02:31:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125051773] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 02:31:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 02:31:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-12-22 02:31:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616243955] [2023-12-22 02:31:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:28,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:28,592 INFO L87 Difference]: Start difference. First operand 757 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:31:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:28,759 INFO L93 Difference]: Finished difference Result 806 states and 1126 transitions. [2023-12-22 02:31:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:28,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-22 02:31:28,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:28,762 INFO L225 Difference]: With dead ends: 806 [2023-12-22 02:31:28,762 INFO L226 Difference]: Without dead ends: 803 [2023-12-22 02:31:28,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:28,763 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 885 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:28,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 526 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-22 02:31:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 756. [2023-12-22 02:31:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 665 states have (on average 1.3969924812030075) internal successors, (929), 673 states have internal predecessors, (929), 57 states have call successors, (57), 29 states have call predecessors, (57), 32 states have return successors, (76), 54 states have call predecessors, (76), 56 states have call successors, (76) [2023-12-22 02:31:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1062 transitions. [2023-12-22 02:31:28,791 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1062 transitions. Word has length 60 [2023-12-22 02:31:28,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:28,791 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1062 transitions. [2023-12-22 02:31:28,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:31:28,791 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1062 transitions. [2023-12-22 02:31:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 02:31:28,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:28,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:28,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:29,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:29,007 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:29,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 375967649, now seen corresponding path program 1 times [2023-12-22 02:31:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:29,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248579778] [2023-12-22 02:31:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:29,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:29,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:29,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 02:31:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:29,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:31:29,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:29,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:31:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:31:29,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:29,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248579778] [2023-12-22 02:31:29,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248579778] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:31:29,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:31:29,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:31:29,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688913376] [2023-12-22 02:31:29,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:31:29,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:31:29,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:29,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:31:29,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:31:29,358 INFO L87 Difference]: Start difference. First operand 756 states and 1062 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:31:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:29,662 INFO L93 Difference]: Finished difference Result 1475 states and 2000 transitions. [2023-12-22 02:31:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:31:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2023-12-22 02:31:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:29,668 INFO L225 Difference]: With dead ends: 1475 [2023-12-22 02:31:29,668 INFO L226 Difference]: Without dead ends: 1472 [2023-12-22 02:31:29,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:31:29,669 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1068 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:29,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1527 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-12-22 02:31:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1059. [2023-12-22 02:31:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 932 states have (on average 1.3680257510729614) internal successors, (1275), 946 states have internal predecessors, (1275), 76 states have call successors, (76), 42 states have call predecessors, (76), 49 states have return successors, (107), 71 states have call predecessors, (107), 75 states have call successors, (107) [2023-12-22 02:31:29,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1458 transitions. [2023-12-22 02:31:29,719 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1458 transitions. Word has length 61 [2023-12-22 02:31:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:29,720 INFO L495 AbstractCegarLoop]: Abstraction has 1059 states and 1458 transitions. [2023-12-22 02:31:29,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:31:29,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1458 transitions. [2023-12-22 02:31:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:31:29,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:29,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:29,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:29,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:29,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:29,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:29,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1733838974, now seen corresponding path program 2 times [2023-12-22 02:31:29,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:29,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235719255] [2023-12-22 02:31:29,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:31:29,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:29,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:29,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:29,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 02:31:30,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:31:30,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:31:30,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:30,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:31:30,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:30,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:30,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235719255] [2023-12-22 02:31:30,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235719255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:30,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:30,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262955674] [2023-12-22 02:31:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:30,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:30,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:30,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:30,031 INFO L87 Difference]: Start difference. First operand 1059 states and 1458 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:31:30,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:30,143 INFO L93 Difference]: Finished difference Result 1614 states and 2189 transitions. [2023-12-22 02:31:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:30,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-22 02:31:30,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:30,147 INFO L225 Difference]: With dead ends: 1614 [2023-12-22 02:31:30,147 INFO L226 Difference]: Without dead ends: 963 [2023-12-22 02:31:30,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:30,148 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 457 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:30,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 543 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-12-22 02:31:30,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 951. [2023-12-22 02:31:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 837 states have (on average 1.3703703703703705) internal successors, (1147), 851 states have internal predecessors, (1147), 69 states have call successors, (69), 37 states have call predecessors, (69), 43 states have return successors, (96), 63 states have call predecessors, (96), 68 states have call successors, (96) [2023-12-22 02:31:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1312 transitions. [2023-12-22 02:31:30,184 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1312 transitions. Word has length 78 [2023-12-22 02:31:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:30,185 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1312 transitions. [2023-12-22 02:31:30,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:31:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1312 transitions. [2023-12-22 02:31:30,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 02:31:30,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:30,190 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:30,208 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 (12)] Ended with exit code 0 [2023-12-22 02:31:30,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:30,394 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:30,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1238688027, now seen corresponding path program 1 times [2023-12-22 02:31:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207517767] [2023-12-22 02:31:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:30,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:30,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:30,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 02:31:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:30,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:30,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:31:30,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:30,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:30,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207517767] [2023-12-22 02:31:30,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207517767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:30,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:30,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:30,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708132045] [2023-12-22 02:31:30,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:30,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:30,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:30,541 INFO L87 Difference]: Start difference. First operand 951 states and 1312 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:30,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:30,971 INFO L93 Difference]: Finished difference Result 1675 states and 2253 transitions. [2023-12-22 02:31:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:30,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-22 02:31:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:30,974 INFO L225 Difference]: With dead ends: 1675 [2023-12-22 02:31:30,974 INFO L226 Difference]: Without dead ends: 984 [2023-12-22 02:31:30,977 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 [2023-12-22 02:31:30,978 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 630 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:30,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 531 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:31:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2023-12-22 02:31:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 951. [2023-12-22 02:31:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 837 states have (on average 1.3524492234169654) internal successors, (1132), 851 states have internal predecessors, (1132), 69 states have call successors, (69), 37 states have call predecessors, (69), 43 states have return successors, (95), 63 states have call predecessors, (95), 68 states have call successors, (95) [2023-12-22 02:31:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1296 transitions. [2023-12-22 02:31:31,018 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1296 transitions. Word has length 92 [2023-12-22 02:31:31,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:31,018 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1296 transitions. [2023-12-22 02:31:31,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1296 transitions. [2023-12-22 02:31:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 02:31:31,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:31,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:31,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:31,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:31,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:31,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1156047679, now seen corresponding path program 1 times [2023-12-22 02:31:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:31,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903276083] [2023-12-22 02:31:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:31,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:31,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:31,229 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:31,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 02:31:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:31,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:31,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:31:31,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:31,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:31,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903276083] [2023-12-22 02:31:31,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903276083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:31,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:31,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580701787] [2023-12-22 02:31:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:31,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:31,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:31,331 INFO L87 Difference]: Start difference. First operand 951 states and 1296 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:31:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:31,475 INFO L93 Difference]: Finished difference Result 1234 states and 1647 transitions. [2023-12-22 02:31:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 93 [2023-12-22 02:31:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:31,476 INFO L225 Difference]: With dead ends: 1234 [2023-12-22 02:31:31,476 INFO L226 Difference]: Without dead ends: 255 [2023-12-22 02:31:31,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:31,478 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 50 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:31,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 920 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:31,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-22 02:31:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-12-22 02:31:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 227 states have internal predecessors, (365), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-22 02:31:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 409 transitions. [2023-12-22 02:31:31,486 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 409 transitions. Word has length 93 [2023-12-22 02:31:31,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:31,486 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 409 transitions. [2023-12-22 02:31:31,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:31:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 409 transitions. [2023-12-22 02:31:31,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:31,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:31,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:31,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 02:31:31,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:31,691 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:31,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash 462683613, now seen corresponding path program 1 times [2023-12-22 02:31:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:31,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499833298] [2023-12-22 02:31:31,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:31,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:31,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:31,693 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:31,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 02:31:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:31,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:31,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:31,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:31,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:31,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499833298] [2023-12-22 02:31:31,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499833298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:31,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601570250] [2023-12-22 02:31:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:31,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:31,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:31,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:31,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:31,810 INFO L87 Difference]: Start difference. First operand 255 states and 409 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:31,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:31,854 INFO L93 Difference]: Finished difference Result 503 states and 807 transitions. [2023-12-22 02:31:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:31,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:31,855 INFO L225 Difference]: With dead ends: 503 [2023-12-22 02:31:31,855 INFO L226 Difference]: Without dead ends: 255 [2023-12-22 02:31:31,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:31,856 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:31,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 375 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-22 02:31:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-12-22 02:31:31,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 226 states have (on average 1.6106194690265487) internal successors, (364), 227 states have internal predecessors, (364), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-22 02:31:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 408 transitions. [2023-12-22 02:31:31,865 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 408 transitions. Word has length 121 [2023-12-22 02:31:31,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:31,865 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 408 transitions. [2023-12-22 02:31:31,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 408 transitions. [2023-12-22 02:31:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:31,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:31,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:31,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 02:31:32,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:32,071 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:32,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1264461349, now seen corresponding path program 1 times [2023-12-22 02:31:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:32,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588862621] [2023-12-22 02:31:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:32,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:32,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:32,073 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:32,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:31:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:32,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:32,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:32,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:32,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588862621] [2023-12-22 02:31:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588862621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956590381] [2023-12-22 02:31:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:32,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:32,273 INFO L87 Difference]: Start difference. First operand 255 states and 408 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:32,743 INFO L93 Difference]: Finished difference Result 768 states and 1241 transitions. [2023-12-22 02:31:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:31:32,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:32,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:32,748 INFO L225 Difference]: With dead ends: 768 [2023-12-22 02:31:32,748 INFO L226 Difference]: Without dead ends: 528 [2023-12-22 02:31:32,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:32,749 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 769 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:32,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1039 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:31:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-22 02:31:32,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 507. [2023-12-22 02:31:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.6211453744493391) internal successors, (736), 456 states have internal predecessors, (736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 815 transitions. [2023-12-22 02:31:32,770 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 815 transitions. Word has length 121 [2023-12-22 02:31:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:32,770 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 815 transitions. [2023-12-22 02:31:32,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 815 transitions. [2023-12-22 02:31:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:32,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:32,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:32,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:32,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:32,975 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:32,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:32,976 INFO L85 PathProgramCache]: Analyzing trace with hash -719172837, now seen corresponding path program 1 times [2023-12-22 02:31:32,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:32,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45381344] [2023-12-22 02:31:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:32,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:32,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:32,977 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:32,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 02:31:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:33,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:33,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:33,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:33,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:33,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45381344] [2023-12-22 02:31:33,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45381344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:33,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:33,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:33,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403350987] [2023-12-22 02:31:33,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:33,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:33,172 INFO L87 Difference]: Start difference. First operand 507 states and 815 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:33,456 INFO L93 Difference]: Finished difference Result 999 states and 1612 transitions. [2023-12-22 02:31:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:33,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:33,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:33,458 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:33,458 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:33,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:33,460 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 542 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:33,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 647 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.605726872246696) internal successors, (729), 456 states have internal predecessors, (729), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 808 transitions. [2023-12-22 02:31:33,477 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 808 transitions. Word has length 121 [2023-12-22 02:31:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:33,477 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 808 transitions. [2023-12-22 02:31:33,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 808 transitions. [2023-12-22 02:31:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:33,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:33,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:33,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-22 02:31:33,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:33,683 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:33,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1542400413, now seen corresponding path program 1 times [2023-12-22 02:31:33,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:33,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722944266] [2023-12-22 02:31:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:33,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:33,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:33,685 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:33,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 02:31:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:33,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:33,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:33,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:33,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:33,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722944266] [2023-12-22 02:31:33,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722944266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:33,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:33,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:33,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465526574] [2023-12-22 02:31:33,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:33,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:33,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:33,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:33,856 INFO L87 Difference]: Start difference. First operand 507 states and 808 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:34,141 INFO L93 Difference]: Finished difference Result 999 states and 1598 transitions. [2023-12-22 02:31:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:34,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:34,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:34,143 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:34,143 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:34,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:34,145 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 535 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:34,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 640 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:34,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.5903083700440528) internal successors, (722), 456 states have internal predecessors, (722), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 801 transitions. [2023-12-22 02:31:34,165 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 801 transitions. Word has length 121 [2023-12-22 02:31:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:34,166 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 801 transitions. [2023-12-22 02:31:34,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 801 transitions. [2023-12-22 02:31:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:34,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:34,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:34,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 02:31:34,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:34,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:34,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:34,373 INFO L85 PathProgramCache]: Analyzing trace with hash 510017629, now seen corresponding path program 1 times [2023-12-22 02:31:34,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:34,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565069937] [2023-12-22 02:31:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:34,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:34,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:34,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:34,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 02:31:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:34,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:34,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:34,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:34,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:34,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565069937] [2023-12-22 02:31:34,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565069937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:34,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:34,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:34,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115842901] [2023-12-22 02:31:34,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:34,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:34,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:34,529 INFO L87 Difference]: Start difference. First operand 507 states and 801 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:34,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:34,817 INFO L93 Difference]: Finished difference Result 999 states and 1584 transitions. [2023-12-22 02:31:34,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:34,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:34,836 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:34,836 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:34,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:34,839 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 529 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:34,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 633 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:34,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.5748898678414096) internal successors, (715), 456 states have internal predecessors, (715), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:34,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 794 transitions. [2023-12-22 02:31:34,886 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 794 transitions. Word has length 121 [2023-12-22 02:31:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:34,886 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 794 transitions. [2023-12-22 02:31:34,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 794 transitions. [2023-12-22 02:31:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:34,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:34,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:34,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:35,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:35,092 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:35,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:35,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1185853027, now seen corresponding path program 1 times [2023-12-22 02:31:35,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:35,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418688254] [2023-12-22 02:31:35,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:35,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:35,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:35,095 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:35,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:31:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:35,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:35,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:35,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:35,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:35,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418688254] [2023-12-22 02:31:35,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418688254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:35,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:35,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963451636] [2023-12-22 02:31:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:35,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:35,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:35,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:35,255 INFO L87 Difference]: Start difference. First operand 507 states and 794 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:35,559 INFO L93 Difference]: Finished difference Result 999 states and 1570 transitions. [2023-12-22 02:31:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:35,562 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:35,562 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:35,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:35,563 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 523 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:35,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 626 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:35,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.5594713656387664) internal successors, (708), 456 states have internal predecessors, (708), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 787 transitions. [2023-12-22 02:31:35,585 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 787 transitions. Word has length 121 [2023-12-22 02:31:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:35,585 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 787 transitions. [2023-12-22 02:31:35,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 787 transitions. [2023-12-22 02:31:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:35,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:35,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:35,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:35,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:35,791 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:35,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash -132179875, now seen corresponding path program 1 times [2023-12-22 02:31:35,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240237676] [2023-12-22 02:31:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:35,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:35,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:35,802 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:35,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 02:31:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:35,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:35,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:35,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:35,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:35,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240237676] [2023-12-22 02:31:35,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240237676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:35,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:35,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248571456] [2023-12-22 02:31:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:35,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:35,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:35,977 INFO L87 Difference]: Start difference. First operand 507 states and 787 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:36,316 INFO L93 Difference]: Finished difference Result 999 states and 1556 transitions. [2023-12-22 02:31:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:36,319 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:36,319 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:36,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:36,322 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 517 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:36,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 619 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 456 states have internal predecessors, (701), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 780 transitions. [2023-12-22 02:31:36,376 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 780 transitions. Word has length 121 [2023-12-22 02:31:36,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:36,378 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 780 transitions. [2023-12-22 02:31:36,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 780 transitions. [2023-12-22 02:31:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:36,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:36,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:36,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:36,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:36,584 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:36,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash -652379747, now seen corresponding path program 1 times [2023-12-22 02:31:36,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:36,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147146661] [2023-12-22 02:31:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:36,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:36,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:36,593 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:36,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 02:31:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:36,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:36,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:36,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:36,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147146661] [2023-12-22 02:31:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147146661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:36,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:36,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:36,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963056295] [2023-12-22 02:31:36,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:36,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:36,758 INFO L87 Difference]: Start difference. First operand 507 states and 780 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:37,072 INFO L93 Difference]: Finished difference Result 999 states and 1542 transitions. [2023-12-22 02:31:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:37,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:37,075 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:37,075 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:37,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:37,077 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 511 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:37,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 612 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:37,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.52863436123348) internal successors, (694), 456 states have internal predecessors, (694), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 773 transitions. [2023-12-22 02:31:37,103 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 773 transitions. Word has length 121 [2023-12-22 02:31:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:37,104 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 773 transitions. [2023-12-22 02:31:37,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 773 transitions. [2023-12-22 02:31:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:37,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:37,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:37,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:37,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:37,309 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:37,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 439218269, now seen corresponding path program 1 times [2023-12-22 02:31:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:37,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444850310] [2023-12-22 02:31:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:37,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:37,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:37,311 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:37,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 02:31:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:37,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:37,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:37,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:37,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:37,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444850310] [2023-12-22 02:31:37,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444850310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:37,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:37,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:37,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287640330] [2023-12-22 02:31:37,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:37,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:37,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:37,459 INFO L87 Difference]: Start difference. First operand 507 states and 773 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:37,758 INFO L93 Difference]: Finished difference Result 999 states and 1528 transitions. [2023-12-22 02:31:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:37,771 INFO L225 Difference]: With dead ends: 999 [2023-12-22 02:31:37,771 INFO L226 Difference]: Without dead ends: 507 [2023-12-22 02:31:37,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:37,772 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 505 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:37,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 605 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-22 02:31:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-22 02:31:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 454 states have (on average 1.513215859030837) internal successors, (687), 456 states have internal predecessors, (687), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-22 02:31:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 766 transitions. [2023-12-22 02:31:37,864 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 766 transitions. Word has length 121 [2023-12-22 02:31:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:37,864 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 766 transitions. [2023-12-22 02:31:37,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 766 transitions. [2023-12-22 02:31:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:37,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:37,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:37,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:38,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:38,066 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:38,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1305715101, now seen corresponding path program 1 times [2023-12-22 02:31:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:38,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598466054] [2023-12-22 02:31:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:38,067 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 [2023-12-22 02:31:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:38,068 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:38,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 02:31:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:38,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:38,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:38,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:38,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:38,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598466054] [2023-12-22 02:31:38,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598466054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:38,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:38,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:38,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300197687] [2023-12-22 02:31:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:38,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:38,247 INFO L87 Difference]: Start difference. First operand 507 states and 766 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:38,629 INFO L93 Difference]: Finished difference Result 1117 states and 1706 transitions. [2023-12-22 02:31:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:38,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:38,632 INFO L225 Difference]: With dead ends: 1117 [2023-12-22 02:31:38,632 INFO L226 Difference]: Without dead ends: 625 [2023-12-22 02:31:38,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:38,634 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 577 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:38,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 599 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:38,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-12-22 02:31:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2023-12-22 02:31:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 566 states have (on average 1.4911660777385158) internal successors, (844), 568 states have internal predecessors, (844), 41 states have call successors, (41), 16 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-22 02:31:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 927 transitions. [2023-12-22 02:31:38,669 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 927 transitions. Word has length 121 [2023-12-22 02:31:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:38,670 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 927 transitions. [2023-12-22 02:31:38,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 927 transitions. [2023-12-22 02:31:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:38,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:38,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:38,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:38,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:38,876 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:38,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 672271614, now seen corresponding path program 1 times [2023-12-22 02:31:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070326042] [2023-12-22 02:31:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:38,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:38,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:38,878 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:38,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 02:31:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:38,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:38,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:39,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:39,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:39,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070326042] [2023-12-22 02:31:39,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070326042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:39,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:39,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612388657] [2023-12-22 02:31:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:39,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:39,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:39,046 INFO L87 Difference]: Start difference. First operand 625 states and 927 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:39,339 INFO L93 Difference]: Finished difference Result 1353 states and 2028 transitions. [2023-12-22 02:31:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:39,368 INFO L225 Difference]: With dead ends: 1353 [2023-12-22 02:31:39,368 INFO L226 Difference]: Without dead ends: 743 [2023-12-22 02:31:39,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:39,370 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 569 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:39,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 592 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:39,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-22 02:31:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2023-12-22 02:31:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 678 states have (on average 1.4705014749262537) internal successors, (997), 680 states have internal predecessors, (997), 43 states have call successors, (43), 20 states have call predecessors, (43), 21 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-22 02:31:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1084 transitions. [2023-12-22 02:31:39,404 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1084 transitions. Word has length 121 [2023-12-22 02:31:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:39,404 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1084 transitions. [2023-12-22 02:31:39,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1084 transitions. [2023-12-22 02:31:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:39,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:39,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:39,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-22 02:31:39,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:39,610 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:39,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash -345250882, now seen corresponding path program 1 times [2023-12-22 02:31:39,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:39,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594205919] [2023-12-22 02:31:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:39,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:39,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:39,613 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:39,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 02:31:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:39,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:39,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:39,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:39,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:39,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594205919] [2023-12-22 02:31:39,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594205919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:39,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:39,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:39,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567198733] [2023-12-22 02:31:39,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:39,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:39,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:39,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:39,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:39,752 INFO L87 Difference]: Start difference. First operand 743 states and 1084 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:40,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:40,053 INFO L93 Difference]: Finished difference Result 1589 states and 2342 transitions. [2023-12-22 02:31:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:40,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:40,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:40,076 INFO L225 Difference]: With dead ends: 1589 [2023-12-22 02:31:40,076 INFO L226 Difference]: Without dead ends: 861 [2023-12-22 02:31:40,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:40,078 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 563 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:40,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 585 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:40,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-22 02:31:40,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-12-22 02:31:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 790 states have (on average 1.450632911392405) internal successors, (1146), 792 states have internal predecessors, (1146), 45 states have call successors, (45), 24 states have call predecessors, (45), 25 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-22 02:31:40,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1237 transitions. [2023-12-22 02:31:40,129 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1237 transitions. Word has length 121 [2023-12-22 02:31:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:40,129 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1237 transitions. [2023-12-22 02:31:40,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1237 transitions. [2023-12-22 02:31:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:40,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:40,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:40,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:40,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:40,335 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:40,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:40,336 INFO L85 PathProgramCache]: Analyzing trace with hash -41695233, now seen corresponding path program 1 times [2023-12-22 02:31:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:40,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953443898] [2023-12-22 02:31:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:40,341 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:40,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 02:31:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:40,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:40,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:40,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:40,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:40,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953443898] [2023-12-22 02:31:40,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953443898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:40,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:40,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:40,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175882149] [2023-12-22 02:31:40,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:40,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:40,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:40,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:40,495 INFO L87 Difference]: Start difference. First operand 861 states and 1237 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:40,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:40,841 INFO L93 Difference]: Finished difference Result 1825 states and 2648 transitions. [2023-12-22 02:31:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:40,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:40,845 INFO L225 Difference]: With dead ends: 1825 [2023-12-22 02:31:40,845 INFO L226 Difference]: Without dead ends: 979 [2023-12-22 02:31:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:40,847 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 556 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:40,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 578 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-22 02:31:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2023-12-22 02:31:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 902 states have (on average 1.4312638580931263) internal successors, (1291), 904 states have internal predecessors, (1291), 47 states have call successors, (47), 28 states have call predecessors, (47), 29 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:31:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1386 transitions. [2023-12-22 02:31:40,891 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1386 transitions. Word has length 121 [2023-12-22 02:31:40,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:40,892 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1386 transitions. [2023-12-22 02:31:40,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1386 transitions. [2023-12-22 02:31:40,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:40,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:40,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:40,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-22 02:31:41,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:41,097 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:41,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:41,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1763422529, now seen corresponding path program 1 times [2023-12-22 02:31:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:41,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604838682] [2023-12-22 02:31:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:41,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:41,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:41,099 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:41,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 02:31:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:41,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:41,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:41,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:41,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604838682] [2023-12-22 02:31:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604838682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:41,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:41,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:41,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744348607] [2023-12-22 02:31:41,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:41,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:41,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:41,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:41,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:41,258 INFO L87 Difference]: Start difference. First operand 979 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:41,571 INFO L93 Difference]: Finished difference Result 2061 states and 2946 transitions. [2023-12-22 02:31:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:41,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:41,594 INFO L225 Difference]: With dead ends: 2061 [2023-12-22 02:31:41,594 INFO L226 Difference]: Without dead ends: 1097 [2023-12-22 02:31:41,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:41,596 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 549 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 571 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:41,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2023-12-22 02:31:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2023-12-22 02:31:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1014 states have (on average 1.4122287968441816) internal successors, (1432), 1016 states have internal predecessors, (1432), 49 states have call successors, (49), 32 states have call predecessors, (49), 33 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:31:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1531 transitions. [2023-12-22 02:31:41,687 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1531 transitions. Word has length 121 [2023-12-22 02:31:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:41,688 INFO L495 AbstractCegarLoop]: Abstraction has 1097 states and 1531 transitions. [2023-12-22 02:31:41,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1531 transitions. [2023-12-22 02:31:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:41,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:41,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:41,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:41,895 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:41,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash 776609856, now seen corresponding path program 1 times [2023-12-22 02:31:41,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575486399] [2023-12-22 02:31:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:41,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:41,897 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:41,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 02:31:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:41,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:41,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:42,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:42,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:42,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575486399] [2023-12-22 02:31:42,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575486399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:42,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:42,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24715451] [2023-12-22 02:31:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:42,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:42,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:42,050 INFO L87 Difference]: Start difference. First operand 1097 states and 1531 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:42,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:42,414 INFO L93 Difference]: Finished difference Result 2297 states and 3236 transitions. [2023-12-22 02:31:42,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:42,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:42,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:42,417 INFO L225 Difference]: With dead ends: 2297 [2023-12-22 02:31:42,418 INFO L226 Difference]: Without dead ends: 1215 [2023-12-22 02:31:42,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:42,419 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 542 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:42,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 564 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2023-12-22 02:31:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2023-12-22 02:31:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1126 states have (on average 1.3934280639431615) internal successors, (1569), 1128 states have internal predecessors, (1569), 51 states have call successors, (51), 36 states have call predecessors, (51), 37 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-22 02:31:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1672 transitions. [2023-12-22 02:31:42,469 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1672 transitions. Word has length 121 [2023-12-22 02:31:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:42,469 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 1672 transitions. [2023-12-22 02:31:42,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1672 transitions. [2023-12-22 02:31:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:42,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:42,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:42,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:42,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:42,675 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:42,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:42,675 INFO L85 PathProgramCache]: Analyzing trace with hash -811772160, now seen corresponding path program 1 times [2023-12-22 02:31:42,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:42,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526775292] [2023-12-22 02:31:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:42,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:42,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:42,677 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:42,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 02:31:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:42,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:42,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:42,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:42,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526775292] [2023-12-22 02:31:42,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526775292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:42,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763142656] [2023-12-22 02:31:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:42,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:42,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:42,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:42,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:42,851 INFO L87 Difference]: Start difference. First operand 1215 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:43,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:43,247 INFO L93 Difference]: Finished difference Result 2533 states and 3518 transitions. [2023-12-22 02:31:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:43,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:43,250 INFO L225 Difference]: With dead ends: 2533 [2023-12-22 02:31:43,250 INFO L226 Difference]: Without dead ends: 1333 [2023-12-22 02:31:43,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:43,252 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 535 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:43,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 557 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:43,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-22 02:31:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2023-12-22 02:31:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1238 states have (on average 1.3747980613893376) internal successors, (1702), 1240 states have internal predecessors, (1702), 53 states have call successors, (53), 40 states have call predecessors, (53), 41 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-22 02:31:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1809 transitions. [2023-12-22 02:31:43,305 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1809 transitions. Word has length 121 [2023-12-22 02:31:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:43,305 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 1809 transitions. [2023-12-22 02:31:43,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1809 transitions. [2023-12-22 02:31:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:43,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:43,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:43,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:43,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:43,511 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:43,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1093884479, now seen corresponding path program 1 times [2023-12-22 02:31:43,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:43,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692338840] [2023-12-22 02:31:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:43,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:43,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:43,513 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:43,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 02:31:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:43,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:43,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:43,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:43,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:43,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692338840] [2023-12-22 02:31:43,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692338840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:43,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:43,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:43,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152859063] [2023-12-22 02:31:43,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:43,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:43,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:43,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:43,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:43,657 INFO L87 Difference]: Start difference. First operand 1333 states and 1809 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:44,070 INFO L93 Difference]: Finished difference Result 2769 states and 3792 transitions. [2023-12-22 02:31:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:44,074 INFO L225 Difference]: With dead ends: 2769 [2023-12-22 02:31:44,074 INFO L226 Difference]: Without dead ends: 1451 [2023-12-22 02:31:44,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:44,076 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 528 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:44,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 550 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-12-22 02:31:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2023-12-22 02:31:44,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1350 states have (on average 1.3562962962962963) internal successors, (1831), 1352 states have internal predecessors, (1831), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-22 02:31:44,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1942 transitions. [2023-12-22 02:31:44,135 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1942 transitions. Word has length 121 [2023-12-22 02:31:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:44,135 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1942 transitions. [2023-12-22 02:31:44,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1942 transitions. [2023-12-22 02:31:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:44,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:44,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:44,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 02:31:44,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:44,340 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:44,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:44,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1680160701, now seen corresponding path program 1 times [2023-12-22 02:31:44,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:44,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073734931] [2023-12-22 02:31:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:44,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:44,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:44,342 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:44,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 02:31:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:44,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:44,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:44,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:44,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:44,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073734931] [2023-12-22 02:31:44,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073734931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:44,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:44,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768415447] [2023-12-22 02:31:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:44,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:44,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:44,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:44,467 INFO L87 Difference]: Start difference. First operand 1451 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:44,592 INFO L93 Difference]: Finished difference Result 2990 states and 4037 transitions. [2023-12-22 02:31:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:44,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:44,596 INFO L225 Difference]: With dead ends: 2990 [2023-12-22 02:31:44,596 INFO L226 Difference]: Without dead ends: 1555 [2023-12-22 02:31:44,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:44,599 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 74 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:44,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 978 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:44,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-12-22 02:31:44,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1455. [2023-12-22 02:31:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1354 states have (on average 1.3434268833087148) internal successors, (1819), 1356 states have internal predecessors, (1819), 55 states have call successors, (55), 44 states have call predecessors, (55), 45 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-22 02:31:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1930 transitions. [2023-12-22 02:31:44,700 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1930 transitions. Word has length 121 [2023-12-22 02:31:44,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:44,700 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1930 transitions. [2023-12-22 02:31:44,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:44,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1930 transitions. [2023-12-22 02:31:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:44,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:44,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:44,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:44,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:44,905 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:44,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:44,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1439920955, now seen corresponding path program 1 times [2023-12-22 02:31:44,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:44,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100654809] [2023-12-22 02:31:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:44,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:44,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:44,907 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:44,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 02:31:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:45,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:45,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:45,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:45,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:45,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100654809] [2023-12-22 02:31:45,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100654809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:45,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:45,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:31:45,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953476508] [2023-12-22 02:31:45,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:45,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:45,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:45,077 INFO L87 Difference]: Start difference. First operand 1455 states and 1930 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:45,248 INFO L93 Difference]: Finished difference Result 4190 states and 5572 transitions. [2023-12-22 02:31:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:45,255 INFO L225 Difference]: With dead ends: 4190 [2023-12-22 02:31:45,255 INFO L226 Difference]: Without dead ends: 2751 [2023-12-22 02:31:45,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:45,257 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 307 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:45,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 677 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2023-12-22 02:31:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2747. [2023-12-22 02:31:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2558 states have (on average 1.3315089913995308) internal successors, (3406), 2561 states have internal predecessors, (3406), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3612 transitions. [2023-12-22 02:31:45,404 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3612 transitions. Word has length 121 [2023-12-22 02:31:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:45,405 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 3612 transitions. [2023-12-22 02:31:45,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3612 transitions. [2023-12-22 02:31:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:45,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:45,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:45,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:45,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:45,610 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:45,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:45,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1012732550, now seen corresponding path program 1 times [2023-12-22 02:31:45,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:45,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529417401] [2023-12-22 02:31:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:45,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:45,612 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:45,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 02:31:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:45,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:45,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:45,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:45,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:45,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529417401] [2023-12-22 02:31:45,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529417401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:45,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:45,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357329164] [2023-12-22 02:31:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:45,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:45,721 INFO L87 Difference]: Start difference. First operand 2747 states and 3612 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:45,881 INFO L93 Difference]: Finished difference Result 6306 states and 8387 transitions. [2023-12-22 02:31:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:45,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:45,922 INFO L225 Difference]: With dead ends: 6306 [2023-12-22 02:31:45,923 INFO L226 Difference]: Without dead ends: 3575 [2023-12-22 02:31:45,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:45,928 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 65 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:45,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 993 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2023-12-22 02:31:46,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 2783. [2023-12-22 02:31:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2594 states have (on average 1.3207401696222052) internal successors, (3426), 2597 states have internal predecessors, (3426), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3632 transitions. [2023-12-22 02:31:46,089 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3632 transitions. Word has length 121 [2023-12-22 02:31:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:46,090 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 3632 transitions. [2023-12-22 02:31:46,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3632 transitions. [2023-12-22 02:31:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:46,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:46,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:46,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:46,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:46,295 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:46,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1899955396, now seen corresponding path program 1 times [2023-12-22 02:31:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:46,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477020859] [2023-12-22 02:31:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:46,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:46,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:46,297 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:46,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 02:31:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:46,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:46,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:46,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:46,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477020859] [2023-12-22 02:31:46,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477020859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:46,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:46,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:46,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272835615] [2023-12-22 02:31:46,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:46,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:46,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:46,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:46,404 INFO L87 Difference]: Start difference. First operand 2783 states and 3632 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:46,573 INFO L93 Difference]: Finished difference Result 5686 states and 7492 transitions. [2023-12-22 02:31:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:46,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:46,580 INFO L225 Difference]: With dead ends: 5686 [2023-12-22 02:31:46,580 INFO L226 Difference]: Without dead ends: 2919 [2023-12-22 02:31:46,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:46,586 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 47 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:46,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 983 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2023-12-22 02:31:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2791. [2023-12-22 02:31:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2602 states have (on average 1.3082244427363567) internal successors, (3404), 2605 states have internal predecessors, (3404), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3610 transitions. [2023-12-22 02:31:46,719 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3610 transitions. Word has length 121 [2023-12-22 02:31:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:46,719 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 3610 transitions. [2023-12-22 02:31:46,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3610 transitions. [2023-12-22 02:31:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:46,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:46,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:46,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:46,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:46,925 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:46,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1845562498, now seen corresponding path program 1 times [2023-12-22 02:31:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:46,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968353422] [2023-12-22 02:31:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:46,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:46,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:46,926 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:46,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 02:31:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:47,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:47,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:47,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:47,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:47,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968353422] [2023-12-22 02:31:47,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968353422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:47,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:47,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:47,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256433555] [2023-12-22 02:31:47,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:47,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:47,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:47,031 INFO L87 Difference]: Start difference. First operand 2791 states and 3610 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:47,188 INFO L93 Difference]: Finished difference Result 5678 states and 7416 transitions. [2023-12-22 02:31:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:47,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:47,224 INFO L225 Difference]: With dead ends: 5678 [2023-12-22 02:31:47,224 INFO L226 Difference]: Without dead ends: 2903 [2023-12-22 02:31:47,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:47,228 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 38 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:47,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 981 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2023-12-22 02:31:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2799. [2023-12-22 02:31:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2610 states have (on average 1.295785440613027) internal successors, (3382), 2613 states have internal predecessors, (3382), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3588 transitions. [2023-12-22 02:31:47,369 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3588 transitions. Word has length 121 [2023-12-22 02:31:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:47,369 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 3588 transitions. [2023-12-22 02:31:47,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3588 transitions. [2023-12-22 02:31:47,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:47,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:47,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:47,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:47,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:47,575 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:47,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:47,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1888705020, now seen corresponding path program 1 times [2023-12-22 02:31:47,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:47,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164344145] [2023-12-22 02:31:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:47,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:47,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:47,577 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:47,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 02:31:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:47,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:47,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:47,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:47,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:47,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164344145] [2023-12-22 02:31:47,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164344145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:47,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:47,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:47,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936767074] [2023-12-22 02:31:47,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:47,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:47,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:47,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:47,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:47,688 INFO L87 Difference]: Start difference. First operand 2799 states and 3588 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:47,842 INFO L93 Difference]: Finished difference Result 5670 states and 7340 transitions. [2023-12-22 02:31:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:47,852 INFO L225 Difference]: With dead ends: 5670 [2023-12-22 02:31:47,852 INFO L226 Difference]: Without dead ends: 2887 [2023-12-22 02:31:47,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:47,856 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 29 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:47,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 982 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2023-12-22 02:31:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2807. [2023-12-22 02:31:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2618 states have (on average 1.2834224598930482) internal successors, (3360), 2621 states have internal predecessors, (3360), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3566 transitions. [2023-12-22 02:31:47,982 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3566 transitions. Word has length 121 [2023-12-22 02:31:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:47,983 INFO L495 AbstractCegarLoop]: Abstraction has 2807 states and 3566 transitions. [2023-12-22 02:31:47,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3566 transitions. [2023-12-22 02:31:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:47,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:47,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:47,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:48,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:48,188 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:48,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1012686014, now seen corresponding path program 1 times [2023-12-22 02:31:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358188104] [2023-12-22 02:31:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:48,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:48,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:48,191 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:48,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 02:31:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:48,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:48,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:48,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:48,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:48,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358188104] [2023-12-22 02:31:48,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358188104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:48,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:48,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608996814] [2023-12-22 02:31:48,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:48,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:48,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:48,321 INFO L87 Difference]: Start difference. First operand 2807 states and 3566 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:48,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:48,483 INFO L93 Difference]: Finished difference Result 5662 states and 7264 transitions. [2023-12-22 02:31:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:48,488 INFO L225 Difference]: With dead ends: 5662 [2023-12-22 02:31:48,488 INFO L226 Difference]: Without dead ends: 2871 [2023-12-22 02:31:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:48,492 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 20 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:48,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 983 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2023-12-22 02:31:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2815. [2023-12-22 02:31:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2626 states have (on average 1.2711348057882712) internal successors, (3338), 2629 states have internal predecessors, (3338), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3544 transitions. [2023-12-22 02:31:48,621 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3544 transitions. Word has length 121 [2023-12-22 02:31:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:48,622 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 3544 transitions. [2023-12-22 02:31:48,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3544 transitions. [2023-12-22 02:31:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:48,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:48,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:48,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-22 02:31:48,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:48,826 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:48,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:48,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1028204732, now seen corresponding path program 1 times [2023-12-22 02:31:48,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:48,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928053463] [2023-12-22 02:31:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:48,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:48,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:48,841 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:48,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 02:31:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:48,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:48,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:48,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:48,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:48,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928053463] [2023-12-22 02:31:48,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928053463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:48,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:48,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:48,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374961243] [2023-12-22 02:31:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:48,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:48,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:48,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:48,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:48,963 INFO L87 Difference]: Start difference. First operand 2815 states and 3544 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:49,126 INFO L93 Difference]: Finished difference Result 5654 states and 7188 transitions. [2023-12-22 02:31:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:49,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:49,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:49,133 INFO L225 Difference]: With dead ends: 5654 [2023-12-22 02:31:49,133 INFO L226 Difference]: Without dead ends: 2855 [2023-12-22 02:31:49,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:49,136 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 11 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:49,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 984 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2023-12-22 02:31:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2823. [2023-12-22 02:31:49,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 2634 states have (on average 1.2589217919514046) internal successors, (3316), 2637 states have internal predecessors, (3316), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 3522 transitions. [2023-12-22 02:31:49,269 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 3522 transitions. Word has length 121 [2023-12-22 02:31:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 2823 states and 3522 transitions. [2023-12-22 02:31:49,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 3522 transitions. [2023-12-22 02:31:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:49,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:49,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:49,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-22 02:31:49,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:49,476 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:49,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1217374722, now seen corresponding path program 1 times [2023-12-22 02:31:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114176125] [2023-12-22 02:31:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:49,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:49,496 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:49,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-22 02:31:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:49,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:49,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:49,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:49,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114176125] [2023-12-22 02:31:49,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114176125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:49,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:49,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:49,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885119838] [2023-12-22 02:31:49,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:49,656 INFO L87 Difference]: Start difference. First operand 2823 states and 3522 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:49,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:49,818 INFO L93 Difference]: Finished difference Result 5646 states and 7112 transitions. [2023-12-22 02:31:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:49,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:49,823 INFO L225 Difference]: With dead ends: 5646 [2023-12-22 02:31:49,823 INFO L226 Difference]: Without dead ends: 2839 [2023-12-22 02:31:49,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:49,830 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:49,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 985 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2023-12-22 02:31:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2831. [2023-12-22 02:31:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2642 states have (on average 1.246782740348221) internal successors, (3294), 2645 states have internal predecessors, (3294), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3500 transitions. [2023-12-22 02:31:49,991 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3500 transitions. Word has length 121 [2023-12-22 02:31:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:49,992 INFO L495 AbstractCegarLoop]: Abstraction has 2831 states and 3500 transitions. [2023-12-22 02:31:49,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3500 transitions. [2023-12-22 02:31:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:49,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:49,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:49,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:50,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:50,199 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:50,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash -627992444, now seen corresponding path program 1 times [2023-12-22 02:31:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:50,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98784603] [2023-12-22 02:31:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:50,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:50,201 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:50,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 02:31:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:50,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:31:50,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:50,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:50,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:50,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98784603] [2023-12-22 02:31:50,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98784603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:50,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:50,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:50,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976220756] [2023-12-22 02:31:50,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:50,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:50,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:50,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:50,444 INFO L87 Difference]: Start difference. First operand 2831 states and 3500 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:50,820 INFO L93 Difference]: Finished difference Result 5647 states and 6987 transitions. [2023-12-22 02:31:50,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:31:50,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:50,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:50,829 INFO L225 Difference]: With dead ends: 5647 [2023-12-22 02:31:50,829 INFO L226 Difference]: Without dead ends: 2831 [2023-12-22 02:31:50,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:31:50,833 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 400 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:50,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 542 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:31:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2023-12-22 02:31:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2831. [2023-12-22 02:31:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2642 states have (on average 1.2414837244511734) internal successors, (3280), 2645 states have internal predecessors, (3280), 102 states have call successors, (102), 84 states have call predecessors, (102), 86 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3486 transitions. [2023-12-22 02:31:50,943 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3486 transitions. Word has length 121 [2023-12-22 02:31:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:50,943 INFO L495 AbstractCegarLoop]: Abstraction has 2831 states and 3486 transitions. [2023-12-22 02:31:50,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3486 transitions. [2023-12-22 02:31:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:50,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:50,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:50,948 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 [2023-12-22 02:31:51,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:51,148 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:51,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash -700379002, now seen corresponding path program 1 times [2023-12-22 02:31:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485962761] [2023-12-22 02:31:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:51,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:51,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:51,150 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:51,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 02:31:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:51,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:31:51,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:51,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:51,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485962761] [2023-12-22 02:31:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485962761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340583397] [2023-12-22 02:31:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:51,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:31:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:51,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:31:51,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:51,366 INFO L87 Difference]: Start difference. First operand 2831 states and 3486 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:51,936 INFO L93 Difference]: Finished difference Result 5929 states and 7312 transitions. [2023-12-22 02:31:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:31:51,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2023-12-22 02:31:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:51,943 INFO L225 Difference]: With dead ends: 5929 [2023-12-22 02:31:51,943 INFO L226 Difference]: Without dead ends: 3113 [2023-12-22 02:31:51,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:31:51,947 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 503 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:51,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 537 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:31:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2023-12-22 02:31:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3021. [2023-12-22 02:31:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3021 states, 2828 states have (on average 1.2227722772277227) internal successors, (3458), 2831 states have internal predecessors, (3458), 102 states have call successors, (102), 88 states have call predecessors, (102), 90 states have return successors, (104), 102 states have call predecessors, (104), 102 states have call successors, (104) [2023-12-22 02:31:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3021 states to 3021 states and 3664 transitions. [2023-12-22 02:31:52,074 INFO L78 Accepts]: Start accepts. Automaton has 3021 states and 3664 transitions. Word has length 121 [2023-12-22 02:31:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:52,075 INFO L495 AbstractCegarLoop]: Abstraction has 3021 states and 3664 transitions. [2023-12-22 02:31:52,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:31:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3021 states and 3664 transitions. [2023-12-22 02:31:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-22 02:31:52,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:52,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:52,079 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 [2023-12-22 02:31:52,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:52,279 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:52,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:52,280 INFO L85 PathProgramCache]: Analyzing trace with hash -559830392, now seen corresponding path program 1 times [2023-12-22 02:31:52,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:52,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894563166] [2023-12-22 02:31:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:52,280 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 [2023-12-22 02:31:52,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:52,281 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:52,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 02:31:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:52,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:52,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:31:52,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:52,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894563166] [2023-12-22 02:31:52,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894563166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:52,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:52,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:31:52,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837485985] [2023-12-22 02:31:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:52,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:52,496 INFO L87 Difference]: Start difference. First operand 3021 states and 3664 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:31:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:52,821 INFO L93 Difference]: Finished difference Result 8970 states and 10936 transitions. [2023-12-22 02:31:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-12-22 02:31:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:52,830 INFO L225 Difference]: With dead ends: 8970 [2023-12-22 02:31:52,830 INFO L226 Difference]: Without dead ends: 5965 [2023-12-22 02:31:52,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:52,835 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 228 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:52,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 614 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:31:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2023-12-22 02:31:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 5961. [2023-12-22 02:31:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 5580 states have (on average 1.2139784946236558) internal successors, (6774), 5589 states have internal predecessors, (6774), 200 states have call successors, (200), 176 states have call predecessors, (200), 180 states have return successors, (204), 196 states have call predecessors, (204), 200 states have call successors, (204) [2023-12-22 02:31:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 7178 transitions. [2023-12-22 02:31:53,123 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 7178 transitions. Word has length 121 [2023-12-22 02:31:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:53,124 INFO L495 AbstractCegarLoop]: Abstraction has 5961 states and 7178 transitions. [2023-12-22 02:31:53,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:31:53,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 7178 transitions. [2023-12-22 02:31:53,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-22 02:31:53,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:53,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:53,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:53,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:53,332 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:53,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2021323182, now seen corresponding path program 1 times [2023-12-22 02:31:53,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:53,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967363540] [2023-12-22 02:31:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:53,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:53,336 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:53,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 02:31:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:53,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:31:53,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 02:31:53,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:53,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967363540] [2023-12-22 02:31:53,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967363540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211357878] [2023-12-22 02:31:53,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:53,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:53,619 INFO L87 Difference]: Start difference. First operand 5961 states and 7178 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:31:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:54,445 INFO L93 Difference]: Finished difference Result 17714 states and 21316 transitions. [2023-12-22 02:31:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:54,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 195 [2023-12-22 02:31:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:54,463 INFO L225 Difference]: With dead ends: 17714 [2023-12-22 02:31:54,463 INFO L226 Difference]: Without dead ends: 11770 [2023-12-22 02:31:54,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:54,471 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 452 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:54,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 920 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:54,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11770 states. [2023-12-22 02:31:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11770 to 11768. [2023-12-22 02:31:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11768 states, 11016 states have (on average 1.2076978939724037) internal successors, (13304), 11038 states have internal predecessors, (13304), 391 states have call successors, (391), 344 states have call predecessors, (391), 360 states have return successors, (431), 387 states have call predecessors, (431), 391 states have call successors, (431) [2023-12-22 02:31:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11768 states to 11768 states and 14126 transitions. [2023-12-22 02:31:55,010 INFO L78 Accepts]: Start accepts. Automaton has 11768 states and 14126 transitions. Word has length 195 [2023-12-22 02:31:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:55,010 INFO L495 AbstractCegarLoop]: Abstraction has 11768 states and 14126 transitions. [2023-12-22 02:31:55,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:31:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 11768 states and 14126 transitions. [2023-12-22 02:31:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-22 02:31:55,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:55,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:55,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2023-12-22 02:31:55,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:55,226 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:55,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:55,227 INFO L85 PathProgramCache]: Analyzing trace with hash 199410960, now seen corresponding path program 1 times [2023-12-22 02:31:55,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:55,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864454058] [2023-12-22 02:31:55,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:55,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:55,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:55,228 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:55,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 02:31:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:55,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:55,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-22 02:31:55,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:55,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:55,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864454058] [2023-12-22 02:31:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864454058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625638170] [2023-12-22 02:31:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:55,366 INFO L87 Difference]: Start difference. First operand 11768 states and 14126 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:31:55,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:55,788 INFO L93 Difference]: Finished difference Result 20698 states and 24829 transitions. [2023-12-22 02:31:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:55,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 195 [2023-12-22 02:31:55,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:55,804 INFO L225 Difference]: With dead ends: 20698 [2023-12-22 02:31:55,804 INFO L226 Difference]: Without dead ends: 8947 [2023-12-22 02:31:55,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:55,815 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 349 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:55,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 323 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8947 states. [2023-12-22 02:31:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8947 to 8947. [2023-12-22 02:31:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8378 states have (on average 1.207567438529482) internal successors, (10117), 8395 states have internal predecessors, (10117), 294 states have call successors, (294), 260 states have call predecessors, (294), 274 states have return successors, (320), 292 states have call predecessors, (320), 294 states have call successors, (320) [2023-12-22 02:31:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 10731 transitions. [2023-12-22 02:31:56,388 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 10731 transitions. Word has length 195 [2023-12-22 02:31:56,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:56,388 INFO L495 AbstractCegarLoop]: Abstraction has 8947 states and 10731 transitions. [2023-12-22 02:31:56,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:31:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 10731 transitions. [2023-12-22 02:31:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-22 02:31:56,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:56,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:56,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:56,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:56,599 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:56,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash -246847817, now seen corresponding path program 1 times [2023-12-22 02:31:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:56,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715919610] [2023-12-22 02:31:56,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:56,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:56,602 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:56,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-22 02:31:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:56,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:31:56,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:56,911 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 02:31:56,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:56,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:56,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715919610] [2023-12-22 02:31:56,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715919610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:56,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:56,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:56,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132612885] [2023-12-22 02:31:56,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:56,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:56,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:56,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:56,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:56,913 INFO L87 Difference]: Start difference. First operand 8947 states and 10731 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:31:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:57,901 INFO L93 Difference]: Finished difference Result 30761 states and 36767 transitions. [2023-12-22 02:31:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:31:57,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 197 [2023-12-22 02:31:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:57,972 INFO L225 Difference]: With dead ends: 30761 [2023-12-22 02:31:57,972 INFO L226 Difference]: Without dead ends: 21831 [2023-12-22 02:31:57,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:31:57,980 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 482 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:57,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 657 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:31:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21831 states. [2023-12-22 02:31:58,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21831 to 21301. [2023-12-22 02:31:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21301 states, 20020 states have (on average 1.20004995004995) internal successors, (24025), 20157 states have internal predecessors, (24025), 560 states have call successors, (560), 496 states have call predecessors, (560), 720 states have return successors, (826), 648 states have call predecessors, (826), 560 states have call successors, (826) [2023-12-22 02:31:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21301 states to 21301 states and 25411 transitions. [2023-12-22 02:31:58,828 INFO L78 Accepts]: Start accepts. Automaton has 21301 states and 25411 transitions. Word has length 197 [2023-12-22 02:31:58,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:58,829 INFO L495 AbstractCegarLoop]: Abstraction has 21301 states and 25411 transitions. [2023-12-22 02:31:58,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:31:58,829 INFO L276 IsEmpty]: Start isEmpty. Operand 21301 states and 25411 transitions. [2023-12-22 02:31:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-22 02:31:58,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:58,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:58,860 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 [2023-12-22 02:31:59,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:59,045 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:59,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash 593215570, now seen corresponding path program 1 times [2023-12-22 02:31:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861908784] [2023-12-22 02:31:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:59,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:59,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:59,047 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:59,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 02:31:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:59,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:31:59,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 02:31:59,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:59,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:59,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861908784] [2023-12-22 02:31:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861908784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:59,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:59,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401359068] [2023-12-22 02:31:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:59,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:59,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:59,360 INFO L87 Difference]: Start difference. First operand 21301 states and 25411 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:01,303 INFO L93 Difference]: Finished difference Result 62150 states and 74094 transitions. [2023-12-22 02:32:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:01,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 199 [2023-12-22 02:32:01,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:01,403 INFO L225 Difference]: With dead ends: 62150 [2023-12-22 02:32:01,404 INFO L226 Difference]: Without dead ends: 40866 [2023-12-22 02:32:01,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:01,421 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 439 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:01,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 861 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:32:01,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40866 states. [2023-12-22 02:32:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40866 to 40864. [2023-12-22 02:32:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40864 states, 38400 states have (on average 1.1975) internal successors, (45984), 38674 states have internal predecessors, (45984), 1071 states have call successors, (1071), 944 states have call predecessors, (1071), 1392 states have return successors, (1615), 1247 states have call predecessors, (1615), 1071 states have call successors, (1615) [2023-12-22 02:32:03,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40864 states to 40864 states and 48670 transitions. [2023-12-22 02:32:03,350 INFO L78 Accepts]: Start accepts. Automaton has 40864 states and 48670 transitions. Word has length 199 [2023-12-22 02:32:03,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:03,351 INFO L495 AbstractCegarLoop]: Abstraction has 40864 states and 48670 transitions. [2023-12-22 02:32:03,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 40864 states and 48670 transitions. [2023-12-22 02:32:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-22 02:32:03,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:03,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:03,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:03,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:03,570 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:03,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash 119979920, now seen corresponding path program 1 times [2023-12-22 02:32:03,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:03,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843581490] [2023-12-22 02:32:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:03,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:03,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:03,572 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:32:03,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 02:32:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:03,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:03,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-22 02:32:03,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:03,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843581490] [2023-12-22 02:32:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843581490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:03,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:03,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:03,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624659722] [2023-12-22 02:32:03,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:03,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:03,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:03,708 INFO L87 Difference]: Start difference. First operand 40864 states and 48670 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:32:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:05,338 INFO L93 Difference]: Finished difference Result 81702 states and 97295 transitions. [2023-12-22 02:32:05,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:05,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 199 [2023-12-22 02:32:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:05,409 INFO L225 Difference]: With dead ends: 81702 [2023-12-22 02:32:05,410 INFO L226 Difference]: Without dead ends: 40855 [2023-12-22 02:32:05,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:05,444 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 346 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:05,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 322 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:32:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40855 states. [2023-12-22 02:32:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40855 to 40855. [2023-12-22 02:32:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40855 states, 38394 states have (on average 1.197374589779653) internal successors, (45972), 38667 states have internal predecessors, (45972), 1068 states have call successors, (1068), 944 states have call predecessors, (1068), 1392 states have return successors, (1612), 1244 states have call predecessors, (1612), 1068 states have call successors, (1612) [2023-12-22 02:32:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40855 states to 40855 states and 48652 transitions. [2023-12-22 02:32:07,850 INFO L78 Accepts]: Start accepts. Automaton has 40855 states and 48652 transitions. Word has length 199 [2023-12-22 02:32:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:07,850 INFO L495 AbstractCegarLoop]: Abstraction has 40855 states and 48652 transitions. [2023-12-22 02:32:07,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:32:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40855 states and 48652 transitions. [2023-12-22 02:32:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-22 02:32:07,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:07,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:07,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:08,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:08,069 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:08,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash -784993801, now seen corresponding path program 1 times [2023-12-22 02:32:08,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082089096] [2023-12-22 02:32:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:08,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:08,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:08,080 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:32:08,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 02:32:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:32:08,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 02:32:08,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:08,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:08,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082089096] [2023-12-22 02:32:08,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082089096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:08,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:08,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:08,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812985884] [2023-12-22 02:32:08,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:08,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:08,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:08,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:08,481 INFO L87 Difference]: Start difference. First operand 40855 states and 48652 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:11,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:11,979 INFO L93 Difference]: Finished difference Result 119299 states and 141957 transitions. [2023-12-22 02:32:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:11,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 201 [2023-12-22 02:32:11,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:12,113 INFO L225 Difference]: With dead ends: 119299 [2023-12-22 02:32:12,113 INFO L226 Difference]: Without dead ends: 78461 [2023-12-22 02:32:12,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:12,151 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 433 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:12,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 829 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:32:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78461 states. [2023-12-22 02:32:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78461 to 78459. [2023-12-22 02:32:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78459 states, 73707 states have (on average 1.194798323090073) internal successors, (88065), 74265 states have internal predecessors, (88065), 2039 states have call successors, (2039), 1792 states have call predecessors, (2039), 2712 states have return successors, (3163), 2403 states have call predecessors, (3163), 2039 states have call successors, (3163) [2023-12-22 02:32:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78459 states to 78459 states and 93267 transitions. [2023-12-22 02:32:15,747 INFO L78 Accepts]: Start accepts. Automaton has 78459 states and 93267 transitions. Word has length 201 [2023-12-22 02:32:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:15,748 INFO L495 AbstractCegarLoop]: Abstraction has 78459 states and 93267 transitions. [2023-12-22 02:32:15,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 78459 states and 93267 transitions. [2023-12-22 02:32:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-22 02:32:15,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:15,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:15,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:15,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:15,976 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:15,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1724570233, now seen corresponding path program 1 times [2023-12-22 02:32:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:15,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742694941] [2023-12-22 02:32:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:15,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:15,978 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:32:15,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 02:32:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:16,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:16,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-22 02:32:16,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:16,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:16,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742694941] [2023-12-22 02:32:16,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742694941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:16,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:16,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664348003] [2023-12-22 02:32:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:16,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:16,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:16,121 INFO L87 Difference]: Start difference. First operand 78459 states and 93267 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:32:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:19,768 INFO L93 Difference]: Finished difference Result 156893 states and 186492 transitions. [2023-12-22 02:32:19,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 201 [2023-12-22 02:32:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:19,939 INFO L225 Difference]: With dead ends: 156893 [2023-12-22 02:32:19,939 INFO L226 Difference]: Without dead ends: 78451 [2023-12-22 02:32:20,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:20,006 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 344 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:20,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 321 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:32:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78451 states. [2023-12-22 02:32:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78451 to 78451. [2023-12-22 02:32:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78451 states, 73702 states have (on average 1.1947436975930097) internal successors, (88055), 74259 states have internal predecessors, (88055), 2036 states have call successors, (2036), 1792 states have call predecessors, (2036), 2712 states have return successors, (3160), 2400 states have call predecessors, (3160), 2036 states have call successors, (3160) [2023-12-22 02:32:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78451 states to 78451 states and 93251 transitions. [2023-12-22 02:32:23,929 INFO L78 Accepts]: Start accepts. Automaton has 78451 states and 93251 transitions. Word has length 201 [2023-12-22 02:32:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:23,929 INFO L495 AbstractCegarLoop]: Abstraction has 78451 states and 93251 transitions. [2023-12-22 02:32:23,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:32:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 78451 states and 93251 transitions. [2023-12-22 02:32:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 02:32:23,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:23,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:23,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:24,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:24,162 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:24,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:24,163 INFO L85 PathProgramCache]: Analyzing trace with hash -771229102, now seen corresponding path program 1 times [2023-12-22 02:32:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:24,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298045755] [2023-12-22 02:32:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:24,163 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 [2023-12-22 02:32:24,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:24,166 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:32:24,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-22 02:32:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:24,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:32:24,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 02:32:24,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:24,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:24,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298045755] [2023-12-22 02:32:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298045755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:32:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200033072] [2023-12-22 02:32:24,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:32:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:32:24,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:32:24,492 INFO L87 Difference]: Start difference. First operand 78451 states and 93251 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:30,759 INFO L93 Difference]: Finished difference Result 228434 states and 271306 transitions. [2023-12-22 02:32:30,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:32:30,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 203 [2023-12-22 02:32:30,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:31,161 INFO L225 Difference]: With dead ends: 228434 [2023-12-22 02:32:31,161 INFO L226 Difference]: Without dead ends: 150000 [2023-12-22 02:32:31,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:32:31,233 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 427 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:31,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 797 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:32:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150000 states. [2023-12-22 02:32:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150000 to 149998. [2023-12-22 02:32:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149998 states, 140838 states have (on average 1.192164046635141) internal successors, (167902), 141976 states have internal predecessors, (167902), 3879 states have call successors, (3879), 3392 states have call predecessors, (3879), 5280 states have return successors, (6187), 4631 states have call predecessors, (6187), 3879 states have call successors, (6187) [2023-12-22 02:32:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149998 states to 149998 states and 177968 transitions. [2023-12-22 02:32:38,326 INFO L78 Accepts]: Start accepts. Automaton has 149998 states and 177968 transitions. Word has length 203 [2023-12-22 02:32:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:32:38,326 INFO L495 AbstractCegarLoop]: Abstraction has 149998 states and 177968 transitions. [2023-12-22 02:32:38,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:32:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 149998 states and 177968 transitions. [2023-12-22 02:32:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 02:32:38,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:32:38,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:32:38,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2023-12-22 02:32:38,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:38,576 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:32:38,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:32:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash -284155376, now seen corresponding path program 1 times [2023-12-22 02:32:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:32:38,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485143386] [2023-12-22 02:32:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:32:38,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:32:38,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:32:38,587 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:32:38,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-22 02:32:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:32:38,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:32:38,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:32:38,722 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-22 02:32:38,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:32:38,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:32:38,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485143386] [2023-12-22 02:32:38,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485143386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:32:38,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:32:38,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:32:38,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692063882] [2023-12-22 02:32:38,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:32:38,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:32:38,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:32:38,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:32:38,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:38,724 INFO L87 Difference]: Start difference. First operand 149998 states and 177968 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:32:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:32:45,348 INFO L93 Difference]: Finished difference Result 299972 states and 355897 transitions. [2023-12-22 02:32:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:32:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 203 [2023-12-22 02:32:45,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:32:45,700 INFO L225 Difference]: With dead ends: 299972 [2023-12-22 02:32:45,700 INFO L226 Difference]: Without dead ends: 149991 [2023-12-22 02:32:45,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:32:45,815 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 342 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:32:45,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 320 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:32:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149991 states.