/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/Problem05_label44+token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:29:23,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:29:23,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:29:23,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:29:23,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:29:23,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:29:23,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:29:23,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:29:23,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:29:23,662 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:29:23,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:29:23,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:29:23,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:29:23,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:29:23,664 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:29:23,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:29:23,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:29:23,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:29:23,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:29:23,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:29:23,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:29:23,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:29:23,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:29:23,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:29:23,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:29:23,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:29:23,668 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:29:23,669 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:29:23,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:29:23,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:29:23,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:29:23,887 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:29:23,888 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:29:23,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.10.cil-2.c [2023-12-16 07:29:24,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:29:25,332 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:29:25,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.10.cil-2.c [2023-12-16 07:29:25,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc246863/181712cfa86e46e782f53c38e721976b/FLAGaaf6fa045 [2023-12-16 07:29:25,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc246863/181712cfa86e46e782f53c38e721976b [2023-12-16 07:29:25,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:29:25,396 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:29:25,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:29:25,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:29:25,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:29:25,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:25" (1/1) ... [2023-12-16 07:29:25,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2b777f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:25, skipping insertion in model container [2023-12-16 07:29:25,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:25" (1/1) ... [2023-12-16 07:29:25,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:29:26,841 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/Problem05_label44+token_ring.10.cil-2.c[377340,377353] [2023-12-16 07:29:26,868 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/Problem05_label44+token_ring.10.cil-2.c[383339,383352] [2023-12-16 07:29:27,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:29:27,090 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:29:27,672 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/Problem05_label44+token_ring.10.cil-2.c[377340,377353] [2023-12-16 07:29:27,678 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/Problem05_label44+token_ring.10.cil-2.c[383339,383352] [2023-12-16 07:29:27,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:29:27,750 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:29:27,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27 WrapperNode [2023-12-16 07:29:27,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:29:27,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:29:27,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:29:27,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:29:27,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:27,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,235 INFO L138 Inliner]: procedures = 65, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13075 [2023-12-16 07:29:28,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:29:28,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:29:28,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:29:28,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:29:28,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,354 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:29:28,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:29:28,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:29:28,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:29:28,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:29:28,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (1/1) ... [2023-12-16 07:29:28,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:29:28,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:29:28,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:29:28,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:29:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:29:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:29:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:29:28,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:29:28,746 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:29:28,748 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:29:36,469 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:29:36,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:29:36,547 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-16 07:29:36,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:29:36 BoogieIcfgContainer [2023-12-16 07:29:36,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:29:36,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:29:36,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:29:36,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:29:36,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:29:25" (1/3) ... [2023-12-16 07:29:36,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139c9967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:29:36, skipping insertion in model container [2023-12-16 07:29:36,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:27" (2/3) ... [2023-12-16 07:29:36,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139c9967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:29:36, skipping insertion in model container [2023-12-16 07:29:36,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:29:36" (3/3) ... [2023-12-16 07:29:36,553 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.10.cil-2.c [2023-12-16 07:29:36,564 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:29:36,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:29:36,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:29:36,624 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;@4f024c54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:29:36,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:29:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:36,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:36,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:36,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:36,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1401539103, now seen corresponding path program 1 times [2023-12-16 07:29:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:36,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813835853] [2023-12-16 07:29:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:36,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:36,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:36,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:36,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:29:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:36,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:29:36,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:36,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:36,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813835853] [2023-12-16 07:29:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813835853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:36,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:36,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:29:36,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353596490] [2023-12-16 07:29:36,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:36,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:29:36,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:29:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:37,001 INFO L87 Difference]: Start difference. First operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) 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, (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) [2023-12-16 07:29:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:37,203 INFO L93 Difference]: Finished difference Result 4842 states and 9061 transitions. [2023-12-16 07:29:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:29:37,205 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, (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 141 [2023-12-16 07:29:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:37,221 INFO L225 Difference]: With dead ends: 4842 [2023-12-16 07:29:37,221 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:37,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:37,230 INFO L413 NwaCegarLoop]: 4407 mSDtfsCounter, 478 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:37,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 8366 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8396818752616158) internal successors, (4395), 2391 states have internal predecessors, (4395), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4443 transitions. [2023-12-16 07:29:37,315 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4443 transitions. Word has length 141 [2023-12-16 07:29:37,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:37,315 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4443 transitions. [2023-12-16 07:29:37,316 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, (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) [2023-12-16 07:29:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4443 transitions. [2023-12-16 07:29:37,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:37,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:37,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:37,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:37,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:37,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:37,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:37,524 INFO L85 PathProgramCache]: Analyzing trace with hash 726378977, now seen corresponding path program 1 times [2023-12-16 07:29:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070119454] [2023-12-16 07:29:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:37,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:37,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:37,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:29:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:37,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:37,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:37,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:37,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:37,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070119454] [2023-12-16 07:29:37,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070119454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:37,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:37,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:37,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723741743] [2023-12-16 07:29:37,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:37,774 INFO L87 Difference]: Start difference. First operand 2421 states and 4443 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:38,308 INFO L93 Difference]: Finished difference Result 2705 states and 4904 transitions. [2023-12-16 07:29:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:38,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:38,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:38,316 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:38,316 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:38,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:38,318 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 4611 mSDsluCounter, 8388 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 12648 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:38,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4629 Valid, 12648 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:38,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:38,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8384261197153622) internal successors, (4392), 2391 states have internal predecessors, (4392), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4440 transitions. [2023-12-16 07:29:38,360 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4440 transitions. Word has length 141 [2023-12-16 07:29:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:38,360 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4440 transitions. [2023-12-16 07:29:38,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4440 transitions. [2023-12-16 07:29:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:38,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:38,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:38,369 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 [2023-12-16 07:29:38,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:38,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:38,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash 185066785, now seen corresponding path program 1 times [2023-12-16 07:29:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990282843] [2023-12-16 07:29:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:38,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:38,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:38,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:38,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:29:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:38,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:38,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:38,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:38,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:38,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990282843] [2023-12-16 07:29:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990282843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:38,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:38,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394901841] [2023-12-16 07:29:38,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:38,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:38,779 INFO L87 Difference]: Start difference. First operand 2421 states and 4440 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:39,186 INFO L93 Difference]: Finished difference Result 2705 states and 4898 transitions. [2023-12-16 07:29:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:39,194 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:39,194 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:39,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:39,196 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4605 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 12641 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4623 Valid, 12641 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:39,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8371703641691084) internal successors, (4389), 2391 states have internal predecessors, (4389), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4437 transitions. [2023-12-16 07:29:39,258 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4437 transitions. Word has length 141 [2023-12-16 07:29:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:39,258 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4437 transitions. [2023-12-16 07:29:39,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4437 transitions. [2023-12-16 07:29:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:39,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:39,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:39,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:39,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:39,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:39,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash -907568417, now seen corresponding path program 1 times [2023-12-16 07:29:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:39,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790458862] [2023-12-16 07:29:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:39,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:39,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:39,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:39,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:29:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:39,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:39,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:39,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:39,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:39,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790458862] [2023-12-16 07:29:39,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790458862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:39,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:39,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:39,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356875517] [2023-12-16 07:29:39,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:39,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:39,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:39,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:39,674 INFO L87 Difference]: Start difference. First operand 2421 states and 4437 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:40,058 INFO L93 Difference]: Finished difference Result 2705 states and 4892 transitions. [2023-12-16 07:29:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:40,065 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:40,065 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:40,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:40,067 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 4599 mSDsluCounter, 8380 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 12634 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:40,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 12634 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:40,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8359146086228548) internal successors, (4386), 2391 states have internal predecessors, (4386), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4434 transitions. [2023-12-16 07:29:40,105 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4434 transitions. Word has length 141 [2023-12-16 07:29:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:40,106 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4434 transitions. [2023-12-16 07:29:40,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4434 transitions. [2023-12-16 07:29:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:40,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:40,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:40,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:40,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:40,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:40,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1710859807, now seen corresponding path program 1 times [2023-12-16 07:29:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:40,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763775558] [2023-12-16 07:29:40,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:40,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:40,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:40,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:40,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:29:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:40,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:40,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:40,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:40,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:40,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:40,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763775558] [2023-12-16 07:29:40,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763775558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:40,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:40,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:40,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295625777] [2023-12-16 07:29:40,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:40,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:40,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:40,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:40,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:40,498 INFO L87 Difference]: Start difference. First operand 2421 states and 4434 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:40,882 INFO L93 Difference]: Finished difference Result 2705 states and 4886 transitions. [2023-12-16 07:29:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:40,889 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:40,890 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:40,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:40,892 INFO L413 NwaCegarLoop]: 4251 mSDtfsCounter, 4593 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4611 SdHoareTripleChecker+Valid, 12627 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:40,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4611 Valid, 12627 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.834658853076601) internal successors, (4383), 2391 states have internal predecessors, (4383), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4431 transitions. [2023-12-16 07:29:40,951 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4431 transitions. Word has length 141 [2023-12-16 07:29:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:40,952 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4431 transitions. [2023-12-16 07:29:40,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4431 transitions. [2023-12-16 07:29:40,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:40,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:40,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:40,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:41,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:41,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:41,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:41,165 INFO L85 PathProgramCache]: Analyzing trace with hash -975621409, now seen corresponding path program 1 times [2023-12-16 07:29:41,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:41,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347841949] [2023-12-16 07:29:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:41,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:41,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:41,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:41,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:29:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:41,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:41,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:41,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:41,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347841949] [2023-12-16 07:29:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347841949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:41,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:41,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:41,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001945518] [2023-12-16 07:29:41,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:41,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:41,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:41,358 INFO L87 Difference]: Start difference. First operand 2421 states and 4431 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:41,726 INFO L93 Difference]: Finished difference Result 2705 states and 4880 transitions. [2023-12-16 07:29:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:41,734 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:41,734 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:41,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:41,736 INFO L413 NwaCegarLoop]: 4248 mSDtfsCounter, 4587 mSDsluCounter, 8372 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4605 SdHoareTripleChecker+Valid, 12620 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:41,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4605 Valid, 12620 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:41,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8334030975303475) internal successors, (4380), 2391 states have internal predecessors, (4380), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4428 transitions. [2023-12-16 07:29:41,783 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4428 transitions. Word has length 141 [2023-12-16 07:29:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:41,784 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4428 transitions. [2023-12-16 07:29:41,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4428 transitions. [2023-12-16 07:29:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:41,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:41,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:41,800 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 [2023-12-16 07:29:41,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:41,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:41,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:41,992 INFO L85 PathProgramCache]: Analyzing trace with hash -646640097, now seen corresponding path program 1 times [2023-12-16 07:29:41,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:41,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473905292] [2023-12-16 07:29:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:41,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:41,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:41,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:42,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:29:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:42,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:42,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:42,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:42,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:42,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473905292] [2023-12-16 07:29:42,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473905292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:42,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446910392] [2023-12-16 07:29:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:42,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:42,165 INFO L87 Difference]: Start difference. First operand 2421 states and 4428 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:42,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:42,539 INFO L93 Difference]: Finished difference Result 2705 states and 4874 transitions. [2023-12-16 07:29:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:42,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:42,547 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:42,547 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:42,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:42,549 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 4581 mSDsluCounter, 8368 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4599 SdHoareTripleChecker+Valid, 12613 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:42,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4599 Valid, 12613 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8321473419840937) internal successors, (4377), 2391 states have internal predecessors, (4377), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4425 transitions. [2023-12-16 07:29:42,592 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4425 transitions. Word has length 141 [2023-12-16 07:29:42,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:42,592 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4425 transitions. [2023-12-16 07:29:42,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4425 transitions. [2023-12-16 07:29:42,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:42,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:42,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:42,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 07:29:42,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:42,800 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:42,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1051669793, now seen corresponding path program 1 times [2023-12-16 07:29:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237620206] [2023-12-16 07:29:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:42,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:42,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:42,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:42,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:29:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:42,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:42,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:42,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:42,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237620206] [2023-12-16 07:29:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237620206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:42,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:42,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104319051] [2023-12-16 07:29:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:42,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:42,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:42,984 INFO L87 Difference]: Start difference. First operand 2421 states and 4425 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:43,426 INFO L93 Difference]: Finished difference Result 2705 states and 4868 transitions. [2023-12-16 07:29:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:43,434 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:43,435 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:43,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:43,437 INFO L413 NwaCegarLoop]: 4242 mSDtfsCounter, 4575 mSDsluCounter, 8364 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4593 SdHoareTripleChecker+Valid, 12606 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:43,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4593 Valid, 12606 Invalid, 466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:43,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8308915864378401) internal successors, (4374), 2391 states have internal predecessors, (4374), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:43,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4422 transitions. [2023-12-16 07:29:43,498 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4422 transitions. Word has length 141 [2023-12-16 07:29:43,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:43,499 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4422 transitions. [2023-12-16 07:29:43,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4422 transitions. [2023-12-16 07:29:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:43,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:43,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:43,506 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 (9)] Ended with exit code 0 [2023-12-16 07:29:43,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:43,706 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:43,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1152022047, now seen corresponding path program 1 times [2023-12-16 07:29:43,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:43,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138765812] [2023-12-16 07:29:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:43,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:43,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:43,708 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:43,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:29:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:43,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:43,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:43,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:43,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138765812] [2023-12-16 07:29:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138765812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175433419] [2023-12-16 07:29:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:43,899 INFO L87 Difference]: Start difference. First operand 2421 states and 4422 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:44,312 INFO L93 Difference]: Finished difference Result 2705 states and 4862 transitions. [2023-12-16 07:29:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:44,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:44,320 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:44,321 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:44,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:44,323 INFO L413 NwaCegarLoop]: 4239 mSDtfsCounter, 4568 mSDsluCounter, 8360 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4586 SdHoareTripleChecker+Valid, 12599 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:44,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4586 Valid, 12599 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:44,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8296358308915865) internal successors, (4371), 2391 states have internal predecessors, (4371), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4419 transitions. [2023-12-16 07:29:44,379 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4419 transitions. Word has length 141 [2023-12-16 07:29:44,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:44,380 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4419 transitions. [2023-12-16 07:29:44,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4419 transitions. [2023-12-16 07:29:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:44,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:44,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:44,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:44,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:44,587 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:44,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1393168033, now seen corresponding path program 1 times [2023-12-16 07:29:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741658237] [2023-12-16 07:29:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:44,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:44,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:44,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:29:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:44,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:44,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:44,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:44,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:44,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741658237] [2023-12-16 07:29:44,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741658237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:44,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:44,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290416217] [2023-12-16 07:29:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:44,795 INFO L87 Difference]: Start difference. First operand 2421 states and 4419 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:45,165 INFO L93 Difference]: Finished difference Result 2705 states and 4856 transitions. [2023-12-16 07:29:45,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:45,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:45,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:45,171 INFO L225 Difference]: With dead ends: 2705 [2023-12-16 07:29:45,171 INFO L226 Difference]: Without dead ends: 2421 [2023-12-16 07:29:45,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:45,173 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 4562 mSDsluCounter, 8356 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4580 SdHoareTripleChecker+Valid, 12592 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:45,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4580 Valid, 12592 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2023-12-16 07:29:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2023-12-16 07:29:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8283800753453328) internal successors, (4368), 2391 states have internal predecessors, (4368), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 07:29:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4416 transitions. [2023-12-16 07:29:45,222 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4416 transitions. Word has length 141 [2023-12-16 07:29:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:45,223 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4416 transitions. [2023-12-16 07:29:45,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4416 transitions. [2023-12-16 07:29:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:45,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:45,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:45,231 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 [2023-12-16 07:29:45,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:45,431 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:45,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:45,432 INFO L85 PathProgramCache]: Analyzing trace with hash -921811683, now seen corresponding path program 1 times [2023-12-16 07:29:45,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:45,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572443336] [2023-12-16 07:29:45,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:45,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:45,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:45,433 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:45,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:29:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:45,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:45,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:45,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:45,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:45,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572443336] [2023-12-16 07:29:45,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572443336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915704776] [2023-12-16 07:29:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:45,606 INFO L87 Difference]: Start difference. First operand 2421 states and 4416 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:46,112 INFO L93 Difference]: Finished difference Result 2776 states and 4967 transitions. [2023-12-16 07:29:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:46,119 INFO L225 Difference]: With dead ends: 2776 [2023-12-16 07:29:46,119 INFO L226 Difference]: Without dead ends: 2492 [2023-12-16 07:29:46,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:46,121 INFO L413 NwaCegarLoop]: 4234 mSDtfsCounter, 4652 mSDsluCounter, 8352 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 12586 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:46,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4670 Valid, 12586 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2023-12-16 07:29:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2492. [2023-12-16 07:29:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8172568172568173) internal successors, (4465), 2459 states have internal predecessors, (4465), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 07:29:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4515 transitions. [2023-12-16 07:29:46,178 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4515 transitions. Word has length 141 [2023-12-16 07:29:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:46,178 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4515 transitions. [2023-12-16 07:29:46,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4515 transitions. [2023-12-16 07:29:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:46,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:46,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:46,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:46,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:46,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:46,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:46,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1571916028, now seen corresponding path program 1 times [2023-12-16 07:29:46,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081059613] [2023-12-16 07:29:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:46,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:46,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:46,388 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:46,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:29:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:46,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:46,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:46,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:46,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:46,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081059613] [2023-12-16 07:29:46,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081059613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:46,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:46,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613843471] [2023-12-16 07:29:46,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:46,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:46,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:46,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:46,586 INFO L87 Difference]: Start difference. First operand 2492 states and 4515 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:47,105 INFO L93 Difference]: Finished difference Result 2918 states and 5165 transitions. [2023-12-16 07:29:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:47,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:47,110 INFO L225 Difference]: With dead ends: 2918 [2023-12-16 07:29:47,111 INFO L226 Difference]: Without dead ends: 2563 [2023-12-16 07:29:47,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:47,113 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 4645 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4663 SdHoareTripleChecker+Valid, 12579 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:47,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4663 Valid, 12579 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:47,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2023-12-16 07:29:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2023-12-16 07:29:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2525 states have (on average 1.805940594059406) internal successors, (4560), 2527 states have internal predecessors, (4560), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:29:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4612 transitions. [2023-12-16 07:29:47,157 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4612 transitions. Word has length 141 [2023-12-16 07:29:47,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:47,157 INFO L495 AbstractCegarLoop]: Abstraction has 2563 states and 4612 transitions. [2023-12-16 07:29:47,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:47,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4612 transitions. [2023-12-16 07:29:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:47,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:47,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:47,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-16 07:29:47,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:47,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:47,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:47,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1363793340, now seen corresponding path program 1 times [2023-12-16 07:29:47,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:47,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291646310] [2023-12-16 07:29:47,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:47,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:47,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:47,366 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:47,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:29:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:47,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:47,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:47,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:47,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291646310] [2023-12-16 07:29:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291646310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:47,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435565672] [2023-12-16 07:29:47,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:47,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:47,534 INFO L87 Difference]: Start difference. First operand 2563 states and 4612 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:47,984 INFO L93 Difference]: Finished difference Result 3060 states and 5359 transitions. [2023-12-16 07:29:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:47,989 INFO L225 Difference]: With dead ends: 3060 [2023-12-16 07:29:47,989 INFO L226 Difference]: Without dead ends: 2634 [2023-12-16 07:29:47,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:47,991 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 4639 mSDsluCounter, 8344 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 12572 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:47,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4657 Valid, 12572 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:47,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2023-12-16 07:29:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2634. [2023-12-16 07:29:48,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2634 states, 2593 states have (on average 1.7944465869649056) internal successors, (4653), 2595 states have internal predecessors, (4653), 27 states have call successors, (27), 12 states have call predecessors, (27), 12 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 07:29:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 4707 transitions. [2023-12-16 07:29:48,112 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 4707 transitions. Word has length 141 [2023-12-16 07:29:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:48,113 INFO L495 AbstractCegarLoop]: Abstraction has 2634 states and 4707 transitions. [2023-12-16 07:29:48,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 4707 transitions. [2023-12-16 07:29:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:48,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:48,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:48,120 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:48,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:48,318 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:48,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1309168731, now seen corresponding path program 1 times [2023-12-16 07:29:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254070775] [2023-12-16 07:29:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:48,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:48,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:48,321 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:48,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:29:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:48,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:48,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:48,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:48,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:48,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254070775] [2023-12-16 07:29:48,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254070775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:48,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:48,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:48,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071606187] [2023-12-16 07:29:48,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:48,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:48,495 INFO L87 Difference]: Start difference. First operand 2634 states and 4707 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:48,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:48,931 INFO L93 Difference]: Finished difference Result 3202 states and 5549 transitions. [2023-12-16 07:29:48,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:48,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:48,937 INFO L225 Difference]: With dead ends: 3202 [2023-12-16 07:29:48,937 INFO L226 Difference]: Without dead ends: 2705 [2023-12-16 07:29:48,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:48,940 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 4632 mSDsluCounter, 8340 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4650 SdHoareTripleChecker+Valid, 12565 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:48,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4650 Valid, 12565 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2023-12-16 07:29:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2705. [2023-12-16 07:29:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2661 states have (on average 1.7827884254039834) internal successors, (4744), 2663 states have internal predecessors, (4744), 28 states have call successors, (28), 14 states have call predecessors, (28), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 07:29:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4800 transitions. [2023-12-16 07:29:48,991 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4800 transitions. Word has length 141 [2023-12-16 07:29:48,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:48,991 INFO L495 AbstractCegarLoop]: Abstraction has 2705 states and 4800 transitions. [2023-12-16 07:29:48,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4800 transitions. [2023-12-16 07:29:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:48,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:48,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:49,012 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 [2023-12-16 07:29:49,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:49,198 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:49,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash 936545884, now seen corresponding path program 1 times [2023-12-16 07:29:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818944936] [2023-12-16 07:29:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:49,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:49,200 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:49,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:29:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:49,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:49,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:49,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:49,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:49,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:49,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818944936] [2023-12-16 07:29:49,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818944936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:49,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:49,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:49,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134464344] [2023-12-16 07:29:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:49,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:49,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:49,367 INFO L87 Difference]: Start difference. First operand 2705 states and 4800 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:49,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:49,807 INFO L93 Difference]: Finished difference Result 3344 states and 5735 transitions. [2023-12-16 07:29:49,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:49,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:49,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:49,812 INFO L225 Difference]: With dead ends: 3344 [2023-12-16 07:29:49,812 INFO L226 Difference]: Without dead ends: 2776 [2023-12-16 07:29:49,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:49,815 INFO L413 NwaCegarLoop]: 4222 mSDtfsCounter, 4625 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 12558 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:49,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 12558 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2023-12-16 07:29:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2776. [2023-12-16 07:29:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2729 states have (on average 1.770978380359106) internal successors, (4833), 2731 states have internal predecessors, (4833), 29 states have call successors, (29), 16 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 07:29:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 4891 transitions. [2023-12-16 07:29:49,861 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 4891 transitions. Word has length 141 [2023-12-16 07:29:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:49,862 INFO L495 AbstractCegarLoop]: Abstraction has 2776 states and 4891 transitions. [2023-12-16 07:29:49,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 4891 transitions. [2023-12-16 07:29:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:49,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:49,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:49,874 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 [2023-12-16 07:29:50,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,067 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:50,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:50,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1339328100, now seen corresponding path program 1 times [2023-12-16 07:29:50,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:50,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229886107] [2023-12-16 07:29:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:50,069 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:50,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:29:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:50,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:50,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:50,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:50,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:50,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229886107] [2023-12-16 07:29:50,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229886107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:50,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:50,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:50,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623752088] [2023-12-16 07:29:50,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:50,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:50,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:50,234 INFO L87 Difference]: Start difference. First operand 2776 states and 4891 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:50,654 INFO L93 Difference]: Finished difference Result 3486 states and 5917 transitions. [2023-12-16 07:29:50,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:50,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:50,659 INFO L225 Difference]: With dead ends: 3486 [2023-12-16 07:29:50,659 INFO L226 Difference]: Without dead ends: 2847 [2023-12-16 07:29:50,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:50,661 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 4617 mSDsluCounter, 8332 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 12551 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:50,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 12551 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2023-12-16 07:29:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2847. [2023-12-16 07:29:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2797 states have (on average 1.7590275294958884) internal successors, (4920), 2799 states have internal predecessors, (4920), 30 states have call successors, (30), 18 states have call predecessors, (30), 18 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 07:29:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4980 transitions. [2023-12-16 07:29:50,706 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4980 transitions. Word has length 141 [2023-12-16 07:29:50,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:50,706 INFO L495 AbstractCegarLoop]: Abstraction has 2847 states and 4980 transitions. [2023-12-16 07:29:50,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:50,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4980 transitions. [2023-12-16 07:29:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:50,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:50,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:50,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,912 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:50,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1002031908, now seen corresponding path program 1 times [2023-12-16 07:29:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130375986] [2023-12-16 07:29:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:50,914 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:50,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 07:29:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:51,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:51,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:51,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:51,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130375986] [2023-12-16 07:29:51,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130375986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:51,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:51,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:51,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403249947] [2023-12-16 07:29:51,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:51,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:51,084 INFO L87 Difference]: Start difference. First operand 2847 states and 4980 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:51,509 INFO L93 Difference]: Finished difference Result 3628 states and 6095 transitions. [2023-12-16 07:29:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:51,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:51,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:51,514 INFO L225 Difference]: With dead ends: 3628 [2023-12-16 07:29:51,514 INFO L226 Difference]: Without dead ends: 2918 [2023-12-16 07:29:51,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:51,516 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 4610 mSDsluCounter, 8328 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 12544 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:51,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 12544 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:51,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2023-12-16 07:29:51,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2918. [2023-12-16 07:29:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2865 states have (on average 1.7469458987783595) internal successors, (5005), 2867 states have internal predecessors, (5005), 31 states have call successors, (31), 20 states have call predecessors, (31), 20 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 07:29:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 5067 transitions. [2023-12-16 07:29:51,567 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 5067 transitions. Word has length 141 [2023-12-16 07:29:51,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:51,568 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 5067 transitions. [2023-12-16 07:29:51,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 5067 transitions. [2023-12-16 07:29:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:51,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:51,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:51,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:51,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:51,774 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:51,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1415794267, now seen corresponding path program 1 times [2023-12-16 07:29:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380197347] [2023-12-16 07:29:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:51,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:51,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:51,776 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:51,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:29:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:51,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:51,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:51,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:51,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:51,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380197347] [2023-12-16 07:29:51,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380197347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:51,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:51,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:51,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455730379] [2023-12-16 07:29:51,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:51,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:51,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:51,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:51,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:51,950 INFO L87 Difference]: Start difference. First operand 2918 states and 5067 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:52,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:52,405 INFO L93 Difference]: Finished difference Result 3770 states and 6269 transitions. [2023-12-16 07:29:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:52,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:52,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:52,411 INFO L225 Difference]: With dead ends: 3770 [2023-12-16 07:29:52,411 INFO L226 Difference]: Without dead ends: 2989 [2023-12-16 07:29:52,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:52,413 INFO L413 NwaCegarLoop]: 4213 mSDtfsCounter, 4603 mSDsluCounter, 8324 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4621 SdHoareTripleChecker+Valid, 12537 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:52,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4621 Valid, 12537 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:52,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2023-12-16 07:29:52,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2989. [2023-12-16 07:29:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2933 states have (on average 1.7347425843845892) internal successors, (5088), 2935 states have internal predecessors, (5088), 32 states have call successors, (32), 22 states have call predecessors, (32), 22 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 07:29:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 5152 transitions. [2023-12-16 07:29:52,529 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 5152 transitions. Word has length 141 [2023-12-16 07:29:52,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:52,530 INFO L495 AbstractCegarLoop]: Abstraction has 2989 states and 5152 transitions. [2023-12-16 07:29:52,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 5152 transitions. [2023-12-16 07:29:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:52,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:52,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:52,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:52,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:52,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:52,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1435248229, now seen corresponding path program 1 times [2023-12-16 07:29:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125107380] [2023-12-16 07:29:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:52,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:52,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:52,739 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:52,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 07:29:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:52,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:52,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:52,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:52,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:52,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125107380] [2023-12-16 07:29:52,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125107380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:52,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:52,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:52,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429589253] [2023-12-16 07:29:52,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:52,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:52,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:52,922 INFO L87 Difference]: Start difference. First operand 2989 states and 5152 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:53,379 INFO L93 Difference]: Finished difference Result 3912 states and 6439 transitions. [2023-12-16 07:29:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:53,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:53,385 INFO L225 Difference]: With dead ends: 3912 [2023-12-16 07:29:53,385 INFO L226 Difference]: Without dead ends: 3060 [2023-12-16 07:29:53,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:53,388 INFO L413 NwaCegarLoop]: 4210 mSDtfsCounter, 4596 mSDsluCounter, 8320 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4614 SdHoareTripleChecker+Valid, 12530 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:53,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4614 Valid, 12530 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:53,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2023-12-16 07:29:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3060. [2023-12-16 07:29:53,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3001 states have (on average 1.7224258580473175) internal successors, (5169), 3003 states have internal predecessors, (5169), 33 states have call successors, (33), 24 states have call predecessors, (33), 24 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 07:29:53,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 5235 transitions. [2023-12-16 07:29:53,445 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 5235 transitions. Word has length 141 [2023-12-16 07:29:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:53,445 INFO L495 AbstractCegarLoop]: Abstraction has 3060 states and 5235 transitions. [2023-12-16 07:29:53,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:53,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 5235 transitions. [2023-12-16 07:29:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:53,446 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:53,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:53,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:53,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:53,651 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:53,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1498192732, now seen corresponding path program 1 times [2023-12-16 07:29:53,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:53,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646586485] [2023-12-16 07:29:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:53,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:53,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:53,653 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:53,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:29:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:53,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:53,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:53,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:53,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646586485] [2023-12-16 07:29:53,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646586485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:53,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:53,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131648109] [2023-12-16 07:29:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:53,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:53,827 INFO L87 Difference]: Start difference. First operand 3060 states and 5235 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:54,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:54,273 INFO L93 Difference]: Finished difference Result 4054 states and 6605 transitions. [2023-12-16 07:29:54,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:29:54,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:54,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:54,278 INFO L225 Difference]: With dead ends: 4054 [2023-12-16 07:29:54,278 INFO L226 Difference]: Without dead ends: 3131 [2023-12-16 07:29:54,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:54,281 INFO L413 NwaCegarLoop]: 4207 mSDtfsCounter, 4589 mSDsluCounter, 8316 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4607 SdHoareTripleChecker+Valid, 12523 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:54,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4607 Valid, 12523 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2023-12-16 07:29:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3131. [2023-12-16 07:29:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3069 states have (on average 1.7100032583903553) internal successors, (5248), 3071 states have internal predecessors, (5248), 34 states have call successors, (34), 26 states have call predecessors, (34), 26 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 07:29:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 5316 transitions. [2023-12-16 07:29:54,338 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 5316 transitions. Word has length 141 [2023-12-16 07:29:54,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:54,338 INFO L495 AbstractCegarLoop]: Abstraction has 3131 states and 5316 transitions. [2023-12-16 07:29:54,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 5316 transitions. [2023-12-16 07:29:54,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:54,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:54,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:54,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:54,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:54,544 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:54,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:54,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1803094372, now seen corresponding path program 1 times [2023-12-16 07:29:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:54,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83012961] [2023-12-16 07:29:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:54,546 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:54,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 07:29:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:54,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:54,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:54,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:54,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83012961] [2023-12-16 07:29:54,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83012961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:54,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:54,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569863207] [2023-12-16 07:29:54,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:54,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:54,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:54,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:54,674 INFO L87 Difference]: Start difference. First operand 3131 states and 5316 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:54,810 INFO L93 Difference]: Finished difference Result 4188 states and 6755 transitions. [2023-12-16 07:29:54,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:54,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:54,816 INFO L225 Difference]: With dead ends: 4188 [2023-12-16 07:29:54,817 INFO L226 Difference]: Without dead ends: 3195 [2023-12-16 07:29:54,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:54,819 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 92 mSDsluCounter, 8680 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 13027 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:54,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 13027 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:54,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2023-12-16 07:29:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3133. [2023-12-16 07:29:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3071 states have (on average 1.706284597850863) internal successors, (5240), 3073 states have internal predecessors, (5240), 34 states have call successors, (34), 26 states have call predecessors, (34), 26 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 07:29:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 5308 transitions. [2023-12-16 07:29:54,877 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 5308 transitions. Word has length 141 [2023-12-16 07:29:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:54,878 INFO L495 AbstractCegarLoop]: Abstraction has 3133 states and 5308 transitions. [2023-12-16 07:29:54,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 5308 transitions. [2023-12-16 07:29:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:54,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:54,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:54,886 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 [2023-12-16 07:29:55,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:55,084 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:55,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1608363934, now seen corresponding path program 1 times [2023-12-16 07:29:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999238162] [2023-12-16 07:29:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:55,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:55,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:55,086 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:55,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:29:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:55,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:55,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:55,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:55,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999238162] [2023-12-16 07:29:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999238162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:55,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:55,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:55,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832441924] [2023-12-16 07:29:55,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:55,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:55,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:55,215 INFO L87 Difference]: Start difference. First operand 3133 states and 5308 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:55,356 INFO L93 Difference]: Finished difference Result 4186 states and 6731 transitions. [2023-12-16 07:29:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:55,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:55,362 INFO L225 Difference]: With dead ends: 4186 [2023-12-16 07:29:55,362 INFO L226 Difference]: Without dead ends: 3191 [2023-12-16 07:29:55,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:55,366 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 83 mSDsluCounter, 8681 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 13028 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:55,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 13028 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2023-12-16 07:29:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3135. [2023-12-16 07:29:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3073 states have (on average 1.7025707777416206) internal successors, (5232), 3075 states have internal predecessors, (5232), 34 states have call successors, (34), 26 states have call predecessors, (34), 26 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 07:29:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 5300 transitions. [2023-12-16 07:29:55,433 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 5300 transitions. Word has length 141 [2023-12-16 07:29:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:55,433 INFO L495 AbstractCegarLoop]: Abstraction has 3135 states and 5300 transitions. [2023-12-16 07:29:55,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 5300 transitions. [2023-12-16 07:29:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:55,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:55,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:55,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:55,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:55,643 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:55,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash 613670236, now seen corresponding path program 1 times [2023-12-16 07:29:55,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:55,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081179270] [2023-12-16 07:29:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:55,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:55,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:55,645 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:55,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:29:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:55,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:55,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:55,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:55,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:55,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081179270] [2023-12-16 07:29:55,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081179270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:55,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:55,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:55,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011261822] [2023-12-16 07:29:55,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:55,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:55,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:55,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:55,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:55,774 INFO L87 Difference]: Start difference. First operand 3135 states and 5300 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:55,907 INFO L93 Difference]: Finished difference Result 4184 states and 6707 transitions. [2023-12-16 07:29:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:55,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:55,913 INFO L225 Difference]: With dead ends: 4184 [2023-12-16 07:29:55,913 INFO L226 Difference]: Without dead ends: 3187 [2023-12-16 07:29:55,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:55,916 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 74 mSDsluCounter, 8682 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 13029 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:55,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 13029 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2023-12-16 07:29:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3137. [2023-12-16 07:29:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3075 states have (on average 1.6988617886178863) internal successors, (5224), 3077 states have internal predecessors, (5224), 34 states have call successors, (34), 26 states have call predecessors, (34), 26 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 07:29:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 5292 transitions. [2023-12-16 07:29:55,989 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 5292 transitions. Word has length 141 [2023-12-16 07:29:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:55,989 INFO L495 AbstractCegarLoop]: Abstraction has 3137 states and 5292 transitions. [2023-12-16 07:29:55,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 5292 transitions. [2023-12-16 07:29:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:55,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:55,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:55,998 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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:56,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,197 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:56,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1938526430, now seen corresponding path program 1 times [2023-12-16 07:29:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:56,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265374325] [2023-12-16 07:29:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:56,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:56,199 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:56,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:29:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:56,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:56,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:56,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:56,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:56,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265374325] [2023-12-16 07:29:56,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265374325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:56,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:56,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:56,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99395953] [2023-12-16 07:29:56,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:56,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:56,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:56,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:56,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:56,326 INFO L87 Difference]: Start difference. First operand 3137 states and 5292 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:56,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:56,457 INFO L93 Difference]: Finished difference Result 4182 states and 6683 transitions. [2023-12-16 07:29:56,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:56,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:56,463 INFO L225 Difference]: With dead ends: 4182 [2023-12-16 07:29:56,463 INFO L226 Difference]: Without dead ends: 3183 [2023-12-16 07:29:56,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:56,466 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 65 mSDsluCounter, 8683 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 13030 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:56,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 13030 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2023-12-16 07:29:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 3139. [2023-12-16 07:29:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3077 states have (on average 1.6951576210594734) internal successors, (5216), 3079 states have internal predecessors, (5216), 34 states have call successors, (34), 26 states have call predecessors, (34), 26 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 07:29:56,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 5284 transitions. [2023-12-16 07:29:56,597 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 5284 transitions. Word has length 141 [2023-12-16 07:29:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:56,597 INFO L495 AbstractCegarLoop]: Abstraction has 3139 states and 5284 transitions. [2023-12-16 07:29:56,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 5284 transitions. [2023-12-16 07:29:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:56,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:56,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:56,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:56,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,803 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:56,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1517407204, now seen corresponding path program 1 times [2023-12-16 07:29:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:56,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472629871] [2023-12-16 07:29:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:56,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:56,806 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:56,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:29:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:56,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:29:56,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:56,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:56,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:56,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472629871] [2023-12-16 07:29:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472629871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:56,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:56,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:29:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468176591] [2023-12-16 07:29:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:56,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:29:56,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:29:56,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:56,974 INFO L87 Difference]: Start difference. First operand 3139 states and 5284 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 07:29:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:57,119 INFO L93 Difference]: Finished difference Result 5055 states and 7781 transitions. [2023-12-16 07:29:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:29:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:57,125 INFO L225 Difference]: With dead ends: 5055 [2023-12-16 07:29:57,125 INFO L226 Difference]: Without dead ends: 4054 [2023-12-16 07:29:57,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:57,127 INFO L413 NwaCegarLoop]: 4396 mSDtfsCounter, 4304 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 4751 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:57,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 4751 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:57,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4054 states. [2023-12-16 07:29:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4054 to 4051. [2023-12-16 07:29:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 3937 states have (on average 1.6065532131064262) internal successors, (6325), 3939 states have internal predecessors, (6325), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:29:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 6449 transitions. [2023-12-16 07:29:57,221 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 6449 transitions. Word has length 141 [2023-12-16 07:29:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:57,222 INFO L495 AbstractCegarLoop]: Abstraction has 4051 states and 6449 transitions. [2023-12-16 07:29:57,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 07:29:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 6449 transitions. [2023-12-16 07:29:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:57,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:57,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:57,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:57,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:57,431 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:57,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:57,431 INFO L85 PathProgramCache]: Analyzing trace with hash 822238877, now seen corresponding path program 1 times [2023-12-16 07:29:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:57,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950765664] [2023-12-16 07:29:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:57,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:57,433 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:57,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:29:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:57,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:57,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:57,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:57,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:57,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950765664] [2023-12-16 07:29:57,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950765664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:57,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:57,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687286735] [2023-12-16 07:29:57,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:57,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:57,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:57,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:57,560 INFO L87 Difference]: Start difference. First operand 4051 states and 6449 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:57,730 INFO L93 Difference]: Finished difference Result 6338 states and 9459 transitions. [2023-12-16 07:29:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:57,736 INFO L225 Difference]: With dead ends: 6338 [2023-12-16 07:29:57,737 INFO L226 Difference]: Without dead ends: 4425 [2023-12-16 07:29:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:57,741 INFO L413 NwaCegarLoop]: 4350 mSDtfsCounter, 47 mSDsluCounter, 8694 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 13044 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:57,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 13044 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:57,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2023-12-16 07:29:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 4073. [2023-12-16 07:29:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4073 states, 3959 states have (on average 1.600656731497853) internal successors, (6337), 3961 states have internal predecessors, (6337), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:29:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 6461 transitions. [2023-12-16 07:29:57,838 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 6461 transitions. Word has length 141 [2023-12-16 07:29:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:57,838 INFO L495 AbstractCegarLoop]: Abstraction has 4073 states and 6461 transitions. [2023-12-16 07:29:57,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 6461 transitions. [2023-12-16 07:29:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:57,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:57,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:57,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:58,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,044 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:58,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:58,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1776179035, now seen corresponding path program 1 times [2023-12-16 07:29:58,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:58,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578411803] [2023-12-16 07:29:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:58,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:58,046 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:58,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 07:29:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:58,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:58,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:58,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:58,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578411803] [2023-12-16 07:29:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578411803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:58,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:58,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675620803] [2023-12-16 07:29:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:58,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:58,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:58,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:58,174 INFO L87 Difference]: Start difference. First operand 4073 states and 6461 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:58,335 INFO L93 Difference]: Finished difference Result 6036 states and 9018 transitions. [2023-12-16 07:29:58,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:58,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:58,341 INFO L225 Difference]: With dead ends: 6036 [2023-12-16 07:29:58,341 INFO L226 Difference]: Without dead ends: 4101 [2023-12-16 07:29:58,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:58,345 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 38 mSDsluCounter, 8685 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13032 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:58,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13032 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2023-12-16 07:29:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 4075. [2023-12-16 07:29:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3961 states have (on average 1.5953042161070436) internal successors, (6319), 3963 states have internal predecessors, (6319), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:29:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 6443 transitions. [2023-12-16 07:29:58,432 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 6443 transitions. Word has length 141 [2023-12-16 07:29:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:58,432 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 6443 transitions. [2023-12-16 07:29:58,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 6443 transitions. [2023-12-16 07:29:58,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:58,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:58,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:58,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:58,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,643 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:58,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1358782429, now seen corresponding path program 1 times [2023-12-16 07:29:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:58,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730775860] [2023-12-16 07:29:58,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:58,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:58,644 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:58,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 07:29:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:58,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:58,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:58,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:58,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730775860] [2023-12-16 07:29:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730775860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:58,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:58,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351990348] [2023-12-16 07:29:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:58,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:58,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:58,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:58,768 INFO L87 Difference]: Start difference. First operand 4075 states and 6443 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:58,911 INFO L93 Difference]: Finished difference Result 6056 states and 9003 transitions. [2023-12-16 07:29:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:58,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:58,916 INFO L225 Difference]: With dead ends: 6056 [2023-12-16 07:29:58,916 INFO L226 Difference]: Without dead ends: 4119 [2023-12-16 07:29:58,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:58,919 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 29 mSDsluCounter, 8686 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13033 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:58,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13033 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2023-12-16 07:29:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 4079. [2023-12-16 07:29:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 3965 states have (on average 1.5899117276166457) internal successors, (6304), 3967 states have internal predecessors, (6304), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:29:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 6428 transitions. [2023-12-16 07:29:59,068 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 6428 transitions. Word has length 141 [2023-12-16 07:29:59,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:59,068 INFO L495 AbstractCegarLoop]: Abstraction has 4079 states and 6428 transitions. [2023-12-16 07:29:59,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 6428 transitions. [2023-12-16 07:29:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:59,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:59,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:59,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:59,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:59,286 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:59,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1792511515, now seen corresponding path program 1 times [2023-12-16 07:29:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434739525] [2023-12-16 07:29:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:59,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:59,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:59,288 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:59,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 07:29:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:59,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:59,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:59,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:59,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434739525] [2023-12-16 07:29:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434739525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093357180] [2023-12-16 07:29:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:59,415 INFO L87 Difference]: Start difference. First operand 4079 states and 6428 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:59,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:59,558 INFO L93 Difference]: Finished difference Result 6052 states and 8957 transitions. [2023-12-16 07:29:59,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:59,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:29:59,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:59,563 INFO L225 Difference]: With dead ends: 6052 [2023-12-16 07:29:59,563 INFO L226 Difference]: Without dead ends: 4111 [2023-12-16 07:29:59,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:59,566 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 20 mSDsluCounter, 8687 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13034 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:59,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13034 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2023-12-16 07:29:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4083. [2023-12-16 07:29:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 3969 states have (on average 1.5845301083396321) internal successors, (6289), 3971 states have internal predecessors, (6289), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:29:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 6413 transitions. [2023-12-16 07:29:59,658 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 6413 transitions. Word has length 141 [2023-12-16 07:29:59,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:59,658 INFO L495 AbstractCegarLoop]: Abstraction has 4083 states and 6413 transitions. [2023-12-16 07:29:59,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:29:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 6413 transitions. [2023-12-16 07:29:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:29:59,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:59,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:59,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:59,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:59,864 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:59,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2058555107, now seen corresponding path program 1 times [2023-12-16 07:29:59,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:59,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769351904] [2023-12-16 07:29:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:59,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:59,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:59,866 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:59,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 07:29:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:59,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:59,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:59,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:59,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:59,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769351904] [2023-12-16 07:29:59,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769351904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:59,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:59,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:59,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597631280] [2023-12-16 07:29:59,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:59,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:29:59,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:59,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:29:59,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:29:59,984 INFO L87 Difference]: Start difference. First operand 4083 states and 6413 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:00,129 INFO L93 Difference]: Finished difference Result 6048 states and 8911 transitions. [2023-12-16 07:30:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:00,134 INFO L225 Difference]: With dead ends: 6048 [2023-12-16 07:30:00,134 INFO L226 Difference]: Without dead ends: 4103 [2023-12-16 07:30:00,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:00,138 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 11 mSDsluCounter, 8688 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13035 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:00,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13035 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2023-12-16 07:30:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 4087. [2023-12-16 07:30:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 3973 states have (on average 1.5791593254467657) internal successors, (6274), 3975 states have internal predecessors, (6274), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:30:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 6398 transitions. [2023-12-16 07:30:00,221 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 6398 transitions. Word has length 141 [2023-12-16 07:30:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:00,222 INFO L495 AbstractCegarLoop]: Abstraction has 4087 states and 6398 transitions. [2023-12-16 07:30:00,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 6398 transitions. [2023-12-16 07:30:00,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:30:00,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:00,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:00,227 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 [2023-12-16 07:30:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:00,427 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:00,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash -119393061, now seen corresponding path program 1 times [2023-12-16 07:30:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:00,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121571990] [2023-12-16 07:30:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:00,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:00,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:00,429 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:00,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 07:30:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:00,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:00,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:00,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:00,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:00,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121571990] [2023-12-16 07:30:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121571990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:00,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791618508] [2023-12-16 07:30:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:00,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:00,557 INFO L87 Difference]: Start difference. First operand 4087 states and 6398 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:00,712 INFO L93 Difference]: Finished difference Result 6044 states and 8865 transitions. [2023-12-16 07:30:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:00,718 INFO L225 Difference]: With dead ends: 6044 [2023-12-16 07:30:00,718 INFO L226 Difference]: Without dead ends: 4095 [2023-12-16 07:30:00,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:00,722 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 2 mSDsluCounter, 8689 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13036 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:00,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13036 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:00,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2023-12-16 07:30:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 4091. [2023-12-16 07:30:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 3977 states have (on average 1.573799346240885) internal successors, (6259), 3979 states have internal predecessors, (6259), 62 states have call successors, (62), 50 states have call predecessors, (62), 50 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-16 07:30:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 6383 transitions. [2023-12-16 07:30:00,810 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 6383 transitions. Word has length 141 [2023-12-16 07:30:00,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:00,810 INFO L495 AbstractCegarLoop]: Abstraction has 4091 states and 6383 transitions. [2023-12-16 07:30:00,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 6383 transitions. [2023-12-16 07:30:00,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:30:00,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:00,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:00,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-16 07:30:01,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:01,016 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:01,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1016786339, now seen corresponding path program 1 times [2023-12-16 07:30:01,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:01,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116983093] [2023-12-16 07:30:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:01,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:01,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:01,018 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:01,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 07:30:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:01,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:01,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:01,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:01,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:01,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116983093] [2023-12-16 07:30:01,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116983093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:01,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:01,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983692240] [2023-12-16 07:30:01,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:01,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:01,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:01,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:01,247 INFO L87 Difference]: Start difference. First operand 4091 states and 6383 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:01,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:01,970 INFO L93 Difference]: Finished difference Result 8083 states and 11269 transitions. [2023-12-16 07:30:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:30:01,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:01,978 INFO L225 Difference]: With dead ends: 8083 [2023-12-16 07:30:01,979 INFO L226 Difference]: Without dead ends: 6129 [2023-12-16 07:30:01,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:30:01,981 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 4613 mSDsluCounter, 8590 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 12826 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:01,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4630 Valid, 12826 Invalid, 668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2023-12-16 07:30:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6081. [2023-12-16 07:30:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 5859 states have (on average 1.4632189793480117) internal successors, (8573), 5863 states have internal predecessors, (8573), 118 states have call successors, (118), 100 states have call predecessors, (118), 102 states have return successors, (120), 118 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 07:30:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 8811 transitions. [2023-12-16 07:30:02,125 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 8811 transitions. Word has length 141 [2023-12-16 07:30:02,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:02,125 INFO L495 AbstractCegarLoop]: Abstraction has 6081 states and 8811 transitions. [2023-12-16 07:30:02,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 8811 transitions. [2023-12-16 07:30:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:30:02,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:02,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:02,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:02,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:02,328 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:02,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:02,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1432813791, now seen corresponding path program 1 times [2023-12-16 07:30:02,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:02,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293264231] [2023-12-16 07:30:02,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:02,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:02,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:02,330 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:02,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 07:30:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:02,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:02,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:02,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:02,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:02,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293264231] [2023-12-16 07:30:02,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293264231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:02,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:02,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393448649] [2023-12-16 07:30:02,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:02,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:02,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:02,558 INFO L87 Difference]: Start difference. First operand 6081 states and 8811 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:03,020 INFO L93 Difference]: Finished difference Result 10025 states and 13648 transitions. [2023-12-16 07:30:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:03,028 INFO L225 Difference]: With dead ends: 10025 [2023-12-16 07:30:03,028 INFO L226 Difference]: Without dead ends: 6081 [2023-12-16 07:30:03,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:03,033 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4429 mSDsluCounter, 8312 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 12515 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:03,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 12515 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:30:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6081 states. [2023-12-16 07:30:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6081 to 6081. [2023-12-16 07:30:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 5859 states have (on average 1.4608294930875576) internal successors, (8559), 5863 states have internal predecessors, (8559), 118 states have call successors, (118), 100 states have call predecessors, (118), 102 states have return successors, (120), 118 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 07:30:03,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 8797 transitions. [2023-12-16 07:30:03,178 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 8797 transitions. Word has length 141 [2023-12-16 07:30:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:03,178 INFO L495 AbstractCegarLoop]: Abstraction has 6081 states and 8797 transitions. [2023-12-16 07:30:03,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 8797 transitions. [2023-12-16 07:30:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:30:03,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:03,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:03,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 07:30:03,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:03,380 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:03,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:03,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2134413665, now seen corresponding path program 1 times [2023-12-16 07:30:03,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:03,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83047630] [2023-12-16 07:30:03,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:03,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:03,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:03,382 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:03,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 07:30:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:03,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:03,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:03,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:03,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:03,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83047630] [2023-12-16 07:30:03,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83047630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:03,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:03,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993463417] [2023-12-16 07:30:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:03,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:03,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:03,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:03,621 INFO L87 Difference]: Start difference. First operand 6081 states and 8797 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:04,270 INFO L93 Difference]: Finished difference Result 10323 states and 13995 transitions. [2023-12-16 07:30:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:30:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:04,281 INFO L225 Difference]: With dead ends: 10323 [2023-12-16 07:30:04,281 INFO L226 Difference]: Without dead ends: 6379 [2023-12-16 07:30:04,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:30:04,289 INFO L413 NwaCegarLoop]: 4202 mSDtfsCounter, 4532 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 12510 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:04,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4549 Valid, 12510 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:04,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6379 states. [2023-12-16 07:30:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6379 to 6311. [2023-12-16 07:30:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 6085 states have (on average 1.4423993426458503) internal successors, (8777), 6089 states have internal predecessors, (8777), 118 states have call successors, (118), 104 states have call predecessors, (118), 106 states have return successors, (120), 118 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 07:30:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 9015 transitions. [2023-12-16 07:30:04,468 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 9015 transitions. Word has length 141 [2023-12-16 07:30:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:04,469 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 9015 transitions. [2023-12-16 07:30:04,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-16 07:30:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 9015 transitions. [2023-12-16 07:30:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 07:30:04,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:04,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:04,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:04,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:04,674 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:04,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:04,674 INFO L85 PathProgramCache]: Analyzing trace with hash 328975331, now seen corresponding path program 1 times [2023-12-16 07:30:04,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:04,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349630163] [2023-12-16 07:30:04,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:04,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:04,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:04,676 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:04,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 07:30:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:04,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:04,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:04,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:04,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349630163] [2023-12-16 07:30:04,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349630163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:04,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:04,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:04,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875832853] [2023-12-16 07:30:04,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:04,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:04,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:04,936 INFO L87 Difference]: Start difference. First operand 6311 states and 9015 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 07:30:05,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:05,263 INFO L93 Difference]: Finished difference Result 14588 states and 19075 transitions. [2023-12-16 07:30:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:05,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 141 [2023-12-16 07:30:05,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:05,280 INFO L225 Difference]: With dead ends: 14588 [2023-12-16 07:30:05,280 INFO L226 Difference]: Without dead ends: 10415 [2023-12-16 07:30:05,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:05,290 INFO L413 NwaCegarLoop]: 4340 mSDtfsCounter, 4231 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:05,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4231 Valid, 4687 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2023-12-16 07:30:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 10411. [2023-12-16 07:30:05,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10411 states, 9965 states have (on average 1.3482187656798796) internal successors, (13435), 9975 states have internal predecessors, (13435), 232 states have call successors, (232), 208 states have call predecessors, (232), 212 states have return successors, (236), 228 states have call predecessors, (236), 232 states have call successors, (236) [2023-12-16 07:30:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 13903 transitions. [2023-12-16 07:30:05,671 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 13903 transitions. Word has length 141 [2023-12-16 07:30:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:05,671 INFO L495 AbstractCegarLoop]: Abstraction has 10411 states and 13903 transitions. [2023-12-16 07:30:05,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 07:30:05,672 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 13903 transitions. [2023-12-16 07:30:05,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 07:30:05,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:05,676 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:05,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-16 07:30:05,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:05,881 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:05,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1712586272, now seen corresponding path program 1 times [2023-12-16 07:30:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973573487] [2023-12-16 07:30:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:05,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:05,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:05,884 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:05,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-16 07:30:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:06,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:06,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 07:30:06,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:06,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973573487] [2023-12-16 07:30:06,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973573487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:06,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:06,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:06,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980102988] [2023-12-16 07:30:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:06,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:06,210 INFO L87 Difference]: Start difference. First operand 10411 states and 13903 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2023-12-16 07:30:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:07,128 INFO L93 Difference]: Finished difference Result 26724 states and 33433 transitions. [2023-12-16 07:30:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:07,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 227 [2023-12-16 07:30:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:07,155 INFO L225 Difference]: With dead ends: 26724 [2023-12-16 07:30:07,156 INFO L226 Difference]: Without dead ends: 18452 [2023-12-16 07:30:07,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:07,166 INFO L413 NwaCegarLoop]: 4429 mSDtfsCounter, 4505 mSDsluCounter, 4590 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 9019 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:07,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 9019 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:30:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18452 states. [2023-12-16 07:30:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18452 to 18450. [2023-12-16 07:30:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18450 states, 17577 states have (on average 1.2821869488536155) internal successors, (22537), 17604 states have internal predecessors, (22537), 447 states have call successors, (447), 400 states have call predecessors, (447), 424 states have return successors, (495), 447 states have call predecessors, (495), 447 states have call successors, (495) [2023-12-16 07:30:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18450 states to 18450 states and 23479 transitions. [2023-12-16 07:30:07,871 INFO L78 Accepts]: Start accepts. Automaton has 18450 states and 23479 transitions. Word has length 227 [2023-12-16 07:30:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:07,871 INFO L495 AbstractCegarLoop]: Abstraction has 18450 states and 23479 transitions. [2023-12-16 07:30:07,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2023-12-16 07:30:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 18450 states and 23479 transitions. [2023-12-16 07:30:07,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 07:30:07,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:07,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:07,885 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 [2023-12-16 07:30:08,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:08,085 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:08,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash 806305950, now seen corresponding path program 1 times [2023-12-16 07:30:08,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:08,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833088716] [2023-12-16 07:30:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:08,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:08,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:08,087 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:08,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 07:30:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:08,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:08,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 07:30:08,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:08,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833088716] [2023-12-16 07:30:08,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833088716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:08,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:08,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:08,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518002167] [2023-12-16 07:30:08,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:08,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:08,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:08,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:08,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:08,231 INFO L87 Difference]: Start difference. First operand 18450 states and 23479 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2023-12-16 07:30:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:08,864 INFO L93 Difference]: Finished difference Result 34748 states and 42944 transitions. [2023-12-16 07:30:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:08,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 227 [2023-12-16 07:30:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:08,892 INFO L225 Difference]: With dead ends: 34748 [2023-12-16 07:30:08,893 INFO L226 Difference]: Without dead ends: 18437 [2023-12-16 07:30:08,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:08,908 INFO L413 NwaCegarLoop]: 4340 mSDtfsCounter, 415 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 8297 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:08,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 8297 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:08,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18437 states. [2023-12-16 07:30:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18437 to 18437. [2023-12-16 07:30:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18437 states, 17567 states have (on average 1.2818352592929925) internal successors, (22518), 17593 states have internal predecessors, (22518), 444 states have call successors, (444), 400 states have call predecessors, (444), 424 states have return successors, (492), 444 states have call predecessors, (492), 444 states have call successors, (492) [2023-12-16 07:30:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18437 states to 18437 states and 23454 transitions. [2023-12-16 07:30:09,599 INFO L78 Accepts]: Start accepts. Automaton has 18437 states and 23454 transitions. Word has length 227 [2023-12-16 07:30:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:09,599 INFO L495 AbstractCegarLoop]: Abstraction has 18437 states and 23454 transitions. [2023-12-16 07:30:09,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2023-12-16 07:30:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 18437 states and 23454 transitions. [2023-12-16 07:30:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-16 07:30:09,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:09,607 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:09,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:09,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:09,814 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:09,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:09,815 INFO L85 PathProgramCache]: Analyzing trace with hash 366292773, now seen corresponding path program 1 times [2023-12-16 07:30:09,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:09,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615493326] [2023-12-16 07:30:09,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:09,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:09,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:09,816 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:09,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 07:30:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:09,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:09,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 07:30:10,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:10,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:10,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615493326] [2023-12-16 07:30:10,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615493326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:10,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:10,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:10,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087657645] [2023-12-16 07:30:10,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:10,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:10,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:10,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:10,171 INFO L87 Difference]: Start difference. First operand 18437 states and 23454 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2023-12-16 07:30:11,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:11,547 INFO L93 Difference]: Finished difference Result 50129 states and 61286 transitions. [2023-12-16 07:30:11,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:11,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 229 [2023-12-16 07:30:11,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:11,602 INFO L225 Difference]: With dead ends: 50129 [2023-12-16 07:30:11,603 INFO L226 Difference]: Without dead ends: 33831 [2023-12-16 07:30:11,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:11,627 INFO L413 NwaCegarLoop]: 4412 mSDtfsCounter, 4500 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4505 SdHoareTripleChecker+Valid, 8984 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:11,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4505 Valid, 8984 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:30:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33831 states. [2023-12-16 07:30:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33831 to 33829. [2023-12-16 07:30:12,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33829 states, 32140 states have (on average 1.242252644679527) internal successors, (39926), 32199 states have internal predecessors, (39926), 855 states have call successors, (855), 768 states have call predecessors, (855), 832 states have return successors, (991), 863 states have call predecessors, (991), 855 states have call successors, (991) [2023-12-16 07:30:12,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33829 states to 33829 states and 41772 transitions. [2023-12-16 07:30:12,919 INFO L78 Accepts]: Start accepts. Automaton has 33829 states and 41772 transitions. Word has length 229 [2023-12-16 07:30:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:12,920 INFO L495 AbstractCegarLoop]: Abstraction has 33829 states and 41772 transitions. [2023-12-16 07:30:12,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2023-12-16 07:30:12,920 INFO L276 IsEmpty]: Start isEmpty. Operand 33829 states and 41772 transitions. [2023-12-16 07:30:12,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-16 07:30:12,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:12,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:12,994 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 [2023-12-16 07:30:13,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:13,134 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:13,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1142540327, now seen corresponding path program 1 times [2023-12-16 07:30:13,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:13,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403659672] [2023-12-16 07:30:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:13,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:13,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:13,137 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:13,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 07:30:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:13,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:13,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 07:30:13,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:13,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403659672] [2023-12-16 07:30:13,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403659672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:13,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48855895] [2023-12-16 07:30:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:13,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:13,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:13,307 INFO L87 Difference]: Start difference. First operand 33829 states and 41772 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2023-12-16 07:30:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:14,655 INFO L93 Difference]: Finished difference Result 65507 states and 79533 transitions. [2023-12-16 07:30:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:14,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 229 [2023-12-16 07:30:14,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:14,717 INFO L225 Difference]: With dead ends: 65507 [2023-12-16 07:30:14,717 INFO L226 Difference]: Without dead ends: 33817 [2023-12-16 07:30:14,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:14,741 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 413 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 8296 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:14,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 8296 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:14,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33817 states. [2023-12-16 07:30:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33817 to 33817. [2023-12-16 07:30:16,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33817 states, 32131 states have (on average 1.242071519716162) internal successors, (39909), 32189 states have internal predecessors, (39909), 852 states have call successors, (852), 768 states have call predecessors, (852), 832 states have return successors, (988), 860 states have call predecessors, (988), 852 states have call successors, (988) [2023-12-16 07:30:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33817 states to 33817 states and 41749 transitions. [2023-12-16 07:30:16,131 INFO L78 Accepts]: Start accepts. Automaton has 33817 states and 41749 transitions. Word has length 229 [2023-12-16 07:30:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:16,131 INFO L495 AbstractCegarLoop]: Abstraction has 33817 states and 41749 transitions. [2023-12-16 07:30:16,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2023-12-16 07:30:16,131 INFO L276 IsEmpty]: Start isEmpty. Operand 33817 states and 41749 transitions. [2023-12-16 07:30:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-16 07:30:16,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:16,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:16,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-16 07:30:16,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:16,345 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:16,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:16,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1839390752, now seen corresponding path program 1 times [2023-12-16 07:30:16,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:16,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770872944] [2023-12-16 07:30:16,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:16,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:16,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:16,348 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:16,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-16 07:30:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:16,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:16,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 07:30:16,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:16,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770872944] [2023-12-16 07:30:16,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770872944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:16,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:16,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055059186] [2023-12-16 07:30:16,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:16,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:16,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:16,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:16,707 INFO L87 Difference]: Start difference. First operand 33817 states and 41749 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2023-12-16 07:30:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:19,468 INFO L93 Difference]: Finished difference Result 95392 states and 115131 transitions. [2023-12-16 07:30:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:19,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 231 [2023-12-16 07:30:19,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:19,582 INFO L225 Difference]: With dead ends: 95392 [2023-12-16 07:30:19,582 INFO L226 Difference]: Without dead ends: 63714 [2023-12-16 07:30:19,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:19,615 INFO L413 NwaCegarLoop]: 4398 mSDtfsCounter, 4493 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4499 SdHoareTripleChecker+Valid, 8952 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:19,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4499 Valid, 8952 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:30:19,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63714 states. [2023-12-16 07:30:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63714 to 63712. [2023-12-16 07:30:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63712 states, 60439 states have (on average 1.2193947616605172) internal successors, (73699), 60570 states have internal predecessors, (73699), 1639 states have call successors, (1639), 1472 states have call predecessors, (1639), 1632 states have return successors, (1967), 1671 states have call predecessors, (1967), 1639 states have call successors, (1967) [2023-12-16 07:30:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63712 states to 63712 states and 77305 transitions. [2023-12-16 07:30:22,738 INFO L78 Accepts]: Start accepts. Automaton has 63712 states and 77305 transitions. Word has length 231 [2023-12-16 07:30:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:22,738 INFO L495 AbstractCegarLoop]: Abstraction has 63712 states and 77305 transitions. [2023-12-16 07:30:22,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2023-12-16 07:30:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 63712 states and 77305 transitions. [2023-12-16 07:30:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-16 07:30:22,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:22,760 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:22,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:22,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:22,965 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:22,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:22,965 INFO L85 PathProgramCache]: Analyzing trace with hash 133261150, now seen corresponding path program 1 times [2023-12-16 07:30:22,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:22,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051104915] [2023-12-16 07:30:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:22,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:22,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:22,967 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:22,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-16 07:30:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:23,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:23,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:23,114 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 07:30:23,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:23,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:23,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051104915] [2023-12-16 07:30:23,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051104915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:23,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:23,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:23,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451250329] [2023-12-16 07:30:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:23,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:23,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:23,115 INFO L87 Difference]: Start difference. First operand 63712 states and 77305 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) Received shutdown request... [2023-12-16 07:30:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:24,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:24,638 INFO L413 NwaCegarLoop]: 4337 mSDtfsCounter, 410 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 8294 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:24,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 8294 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:30:24,639 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:30:24,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-16 07:30:24,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:30:24,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:30:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:24,843 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (63712states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (85487 states constructed, input type IntersectNwa). [2023-12-16 07:30:24,844 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:30:24,846 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:24,847 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:30:24,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:30:24 BoogieIcfgContainer [2023-12-16 07:30:24,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:30:24,849 INFO L158 Benchmark]: Toolchain (without parser) took 59453.37ms. Allocated memory was 282.1MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 196.0MB in the beginning and 3.2GB in the end (delta: -3.0GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 07:30:24,849 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2352.70ms. Allocated memory was 282.1MB in the beginning and 453.0MB in the end (delta: 170.9MB). Free memory was 195.6MB in the beginning and 292.9MB in the end (delta: -97.3MB). Peak memory consumption was 149.5MB. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 483.77ms. Allocated memory is still 453.0MB. Free memory was 292.9MB in the beginning and 310.7MB in the end (delta: -17.8MB). Peak memory consumption was 136.3MB. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L158 Benchmark]: Boogie Preprocessor took 346.88ms. Allocated memory is still 453.0MB. Free memory was 310.7MB in the beginning and 236.2MB in the end (delta: 74.4MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L158 Benchmark]: RCFGBuilder took 7963.36ms. Allocated memory was 453.0MB in the beginning and 1.4GB in the end (delta: 978.3MB). Free memory was 236.2MB in the beginning and 819.8MB in the end (delta: -583.5MB). Peak memory consumption was 412.6MB. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L158 Benchmark]: TraceAbstraction took 48300.21ms. Allocated memory was 1.4GB in the beginning and 4.0GB in the end (delta: 2.5GB). Free memory was 819.2MB in the beginning and 3.2GB in the end (delta: -2.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 07:30:24,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2352.70ms. Allocated memory was 282.1MB in the beginning and 453.0MB in the end (delta: 170.9MB). Free memory was 195.6MB in the beginning and 292.9MB in the end (delta: -97.3MB). Peak memory consumption was 149.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 483.77ms. Allocated memory is still 453.0MB. Free memory was 292.9MB in the beginning and 310.7MB in the end (delta: -17.8MB). Peak memory consumption was 136.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 346.88ms. Allocated memory is still 453.0MB. Free memory was 310.7MB in the beginning and 236.2MB in the end (delta: 74.4MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * RCFGBuilder took 7963.36ms. Allocated memory was 453.0MB in the beginning and 1.4GB in the end (delta: 978.3MB). Free memory was 236.2MB in the beginning and 819.8MB in the end (delta: -583.5MB). Peak memory consumption was 412.6MB. Max. memory is 8.0GB. * TraceAbstraction took 48300.21ms. Allocated memory was 1.4GB in the beginning and 4.0GB in the end (delta: 2.5GB). Free memory was 819.2MB in the beginning and 3.2GB in the end (delta: -2.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (63712states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (85487 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11022]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11022). Cancelled while NwaCegarLoop was constructing difference of abstraction (63712states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (85487 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2425 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 48.3s, OverallIterations: 41, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125681 SdHoareTripleChecker+Valid, 10.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125273 mSDsluCounter, 476950 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 301001 mSDsCounter, 928 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13580 IncrementalHoareTripleChecker+Invalid, 14508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 928 mSolverCounterUnsat, 175949 mSDtfsCounter, 13580 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6298 GetRequests, 6173 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63712occurred in iteration=40, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.2s AutomataMinimizationTime, 40 MinimizatonAttempts, 807 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 6309 NumberOfCodeBlocks, 6309 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 6268 ConstructedInterpolants, 0 QuantifiedInterpolants, 10318 SizeOfPredicates, 10 NumberOfNonLiveVariables, 17081 ConjunctsInSsa, 170 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 408/408 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown