/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:29:37,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:29:38,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:29:38,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:29:38,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:29:38,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:29:38,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:29:38,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:29:38,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:29:38,055 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:29:38,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:29:38,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:29:38,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:29:38,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:29:38,057 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:29:38,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:29:38,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:29:38,057 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:29:38,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:29:38,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:29:38,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:29:38,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:29:38,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:29:38,062 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:29:38,062 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:29:38,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:29:38,063 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:29:38,063 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:29:38,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:29:38,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:29:38,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:29:38,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:29:38,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:29:38,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:29:38,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:29:38,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:29:38,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:29:38,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:29:38,065 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:29:38,065 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:29:38,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:29:38,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:29:38,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:29:38,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:29:38,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:29:38,067 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:29:38,067 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:29:38,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:29:38,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:29:38,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:29:38,232 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:29:38,232 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:29:38,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2023-12-22 02:29:39,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:29:39,437 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:29:39,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2023-12-22 02:29:39,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed32dea1/68bb1ec8ff6944f0a6d27d7f9b751625/FLAGb917e7b37 [2023-12-22 02:29:39,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed32dea1/68bb1ec8ff6944f0a6d27d7f9b751625 [2023-12-22 02:29:39,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:29:39,484 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:29:39,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:29:39,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:29:39,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:29:39,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3df5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39, skipping insertion in model container [2023-12-22 02:29:39,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:29:39,675 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[913,926] [2023-12-22 02:29:39,711 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2023-12-22 02:29:39,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:29:39,764 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:29:39,786 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[913,926] [2023-12-22 02:29:39,804 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2023-12-22 02:29:39,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:29:39,865 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:29:39,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39 WrapperNode [2023-12-22 02:29:39,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:29:39,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:29:39,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:29:39,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:29:39,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,919 INFO L138 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 578 [2023-12-22 02:29:39,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:29:39,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:29:39,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:29:39,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:29:39,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,940 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,954 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 02:29:39,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:39,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:29:39,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:29:39,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:29:39,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:29:39,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (1/1) ... [2023-12-22 02:29:40,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:29:40,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:29:40,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 02:29:40,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 02:29:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:29:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:29:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:29:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-22 02:29:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-22 02:29:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:29:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:29:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:29:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:29:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:29:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:29:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:29:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:29:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:29:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:29:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:29:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:29:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:29:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:29:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:29:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:29:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:29:40,149 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:29:40,151 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:29:40,575 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:29:40,614 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:29:40,614 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-22 02:29:40,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:29:40 BoogieIcfgContainer [2023-12-22 02:29:40,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:29:40,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:29:40,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:29:40,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:29:40,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:29:39" (1/3) ... [2023-12-22 02:29:40,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9d43ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:29:40, skipping insertion in model container [2023-12-22 02:29:40,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:29:39" (2/3) ... [2023-12-22 02:29:40,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9d43ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:29:40, skipping insertion in model container [2023-12-22 02:29:40,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:29:40" (3/3) ... [2023-12-22 02:29:40,620 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2023-12-22 02:29:40,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:29:40,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:29:40,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:29:40,691 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;@78c43733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:29:40,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:29:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 191 states have (on average 1.6806282722513088) internal successors, (321), 196 states have internal predecessors, (321), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-22 02:29:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-22 02:29:40,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:40,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:40,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:40,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash 330085048, now seen corresponding path program 1 times [2023-12-22 02:29:40,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:40,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810129514] [2023-12-22 02:29:40,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:40,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:40,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:40,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:40,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 02:29:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:40,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:40,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:40,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:40,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:40,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810129514] [2023-12-22 02:29:40,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810129514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:40,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:40,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:40,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688270823] [2023-12-22 02:29:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:40,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:40,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:40,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:40,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:40,912 INFO L87 Difference]: Start difference. First operand has 227 states, 191 states have (on average 1.6806282722513088) internal successors, (321), 196 states have internal predecessors, (321), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:41,065 INFO L93 Difference]: Finished difference Result 493 states and 803 transitions. [2023-12-22 02:29:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:41,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-22 02:29:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:41,077 INFO L225 Difference]: With dead ends: 493 [2023-12-22 02:29:41,078 INFO L226 Difference]: Without dead ends: 275 [2023-12-22 02:29:41,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:41,083 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 320 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:41,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 395 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:29:41,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-22 02:29:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2023-12-22 02:29:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 231 states have (on average 1.5238095238095237) internal successors, (352), 234 states have internal predecessors, (352), 28 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (30), 26 states have call predecessors, (30), 26 states have call successors, (30) [2023-12-22 02:29:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 410 transitions. [2023-12-22 02:29:41,137 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 410 transitions. Word has length 37 [2023-12-22 02:29:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:41,137 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 410 transitions. [2023-12-22 02:29:41,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 410 transitions. [2023-12-22 02:29:41,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 02:29:41,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:41,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:41,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:29:41,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:41,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:41,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:41,349 INFO L85 PathProgramCache]: Analyzing trace with hash -595157381, now seen corresponding path program 1 times [2023-12-22 02:29:41,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:41,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861341360] [2023-12-22 02:29:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:41,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:41,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:41,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 02:29:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:41,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:41,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:41,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:41,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:41,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861341360] [2023-12-22 02:29:41,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861341360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:41,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:41,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:41,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381375670] [2023-12-22 02:29:41,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:41,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:41,492 INFO L87 Difference]: Start difference. First operand 271 states and 410 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:41,554 INFO L93 Difference]: Finished difference Result 471 states and 702 transitions. [2023-12-22 02:29:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-22 02:29:41,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:41,560 INFO L225 Difference]: With dead ends: 471 [2023-12-22 02:29:41,561 INFO L226 Difference]: Without dead ends: 368 [2023-12-22 02:29:41,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:41,564 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 312 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:41,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 376 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:41,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-22 02:29:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2023-12-22 02:29:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 312 states have (on average 1.483974358974359) internal successors, (463), 315 states have internal predecessors, (463), 36 states have call successors, (36), 15 states have call predecessors, (36), 14 states have return successors, (42), 34 states have call predecessors, (42), 34 states have call successors, (42) [2023-12-22 02:29:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 541 transitions. [2023-12-22 02:29:41,602 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 541 transitions. Word has length 38 [2023-12-22 02:29:41,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:41,602 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 541 transitions. [2023-12-22 02:29:41,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 541 transitions. [2023-12-22 02:29:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 02:29:41,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:41,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:41,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 02:29:41,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:41,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:41,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1757828978, now seen corresponding path program 1 times [2023-12-22 02:29:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176415212] [2023-12-22 02:29:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:41,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:41,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:41,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:41,837 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 (4)] Waiting until timeout for monitored process [2023-12-22 02:29:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:41,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:41,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:41,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:41,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176415212] [2023-12-22 02:29:41,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176415212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:41,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:41,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:41,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684351612] [2023-12-22 02:29:41,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:41,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:41,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:41,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:41,940 INFO L87 Difference]: Start difference. First operand 364 states and 541 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:42,020 INFO L93 Difference]: Finished difference Result 716 states and 1038 transitions. [2023-12-22 02:29:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-22 02:29:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:42,024 INFO L225 Difference]: With dead ends: 716 [2023-12-22 02:29:42,024 INFO L226 Difference]: Without dead ends: 520 [2023-12-22 02:29:42,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:42,027 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 58 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:42,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 620 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-22 02:29:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 469. [2023-12-22 02:29:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 405 states have (on average 1.4617283950617284) internal successors, (592), 410 states have internal predecessors, (592), 42 states have call successors, (42), 21 states have call predecessors, (42), 20 states have return successors, (50), 38 states have call predecessors, (50), 40 states have call successors, (50) [2023-12-22 02:29:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 684 transitions. [2023-12-22 02:29:42,058 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 684 transitions. Word has length 39 [2023-12-22 02:29:42,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:42,058 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 684 transitions. [2023-12-22 02:29:42,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-22 02:29:42,059 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 684 transitions. [2023-12-22 02:29:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 02:29:42,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:42,062 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:42,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 02:29:42,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:42,266 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:42,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash 586677091, now seen corresponding path program 1 times [2023-12-22 02:29:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:42,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741718053] [2023-12-22 02:29:42,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:42,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:42,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:42,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:42,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:29:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:42,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:42,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:42,396 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:42,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:42,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:42,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741718053] [2023-12-22 02:29:42,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741718053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:42,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:42,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:42,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541105384] [2023-12-22 02:29:42,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:42,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:42,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:42,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:42,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:42,398 INFO L87 Difference]: Start difference. First operand 469 states and 684 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:29:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:42,484 INFO L93 Difference]: Finished difference Result 921 states and 1321 transitions. [2023-12-22 02:29:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-22 02:29:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:42,488 INFO L225 Difference]: With dead ends: 921 [2023-12-22 02:29:42,488 INFO L226 Difference]: Without dead ends: 620 [2023-12-22 02:29:42,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:42,490 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 46 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:42,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 661 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:29:42,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-12-22 02:29:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2023-12-22 02:29:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 534 states have (on average 1.4063670411985019) internal successors, (751), 539 states have internal predecessors, (751), 56 states have call successors, (56), 29 states have call predecessors, (56), 28 states have return successors, (72), 52 states have call predecessors, (72), 54 states have call successors, (72) [2023-12-22 02:29:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 879 transitions. [2023-12-22 02:29:42,519 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 879 transitions. Word has length 54 [2023-12-22 02:29:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 879 transitions. [2023-12-22 02:29:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:29:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 879 transitions. [2023-12-22 02:29:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:29:42,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:42,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:42,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:42,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:42,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1504425029, now seen corresponding path program 1 times [2023-12-22 02:29:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:42,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280330599] [2023-12-22 02:29:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:42,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:42,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:42,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 02:29:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:42,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:42,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:29:42,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:42,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280330599] [2023-12-22 02:29:42,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280330599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:42,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:42,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:42,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606676528] [2023-12-22 02:29:42,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:42,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:42,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:42,882 INFO L87 Difference]: Start difference. First operand 620 states and 879 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:42,953 INFO L93 Difference]: Finished difference Result 1105 states and 1538 transitions. [2023-12-22 02:29:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:42,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-22 02:29:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:42,958 INFO L225 Difference]: With dead ends: 1105 [2023-12-22 02:29:42,959 INFO L226 Difference]: Without dead ends: 733 [2023-12-22 02:29:42,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:42,960 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 299 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:42,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 380 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-22 02:29:43,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2023-12-22 02:29:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 633 states have (on average 1.3728278041074249) internal successors, (869), 638 states have internal predecessors, (869), 64 states have call successors, (64), 35 states have call predecessors, (64), 34 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2023-12-22 02:29:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1017 transitions. [2023-12-22 02:29:43,010 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1017 transitions. Word has length 59 [2023-12-22 02:29:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:43,010 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1017 transitions. [2023-12-22 02:29:43,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1017 transitions. [2023-12-22 02:29:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:29:43,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:43,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:43,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:43,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:43,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:43,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash 732425990, now seen corresponding path program 1 times [2023-12-22 02:29:43,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:43,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606948238] [2023-12-22 02:29:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:43,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:43,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:43,218 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:43,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 02:29:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:43,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:43,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:29:43,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:43,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606948238] [2023-12-22 02:29:43,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606948238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:43,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:43,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203613524] [2023-12-22 02:29:43,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:43,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:43,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:43,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:43,302 INFO L87 Difference]: Start difference. First operand 733 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:43,373 INFO L93 Difference]: Finished difference Result 1232 states and 1706 transitions. [2023-12-22 02:29:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:29:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:43,376 INFO L225 Difference]: With dead ends: 1232 [2023-12-22 02:29:43,376 INFO L226 Difference]: Without dead ends: 794 [2023-12-22 02:29:43,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:43,377 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 11 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:43,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 928 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:43,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2023-12-22 02:29:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 764. [2023-12-22 02:29:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 662 states have (on average 1.3564954682779455) internal successors, (898), 669 states have internal predecessors, (898), 64 states have call successors, (64), 35 states have call predecessors, (64), 36 states have return successors, (86), 60 states have call predecessors, (86), 62 states have call successors, (86) [2023-12-22 02:29:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1048 transitions. [2023-12-22 02:29:43,402 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1048 transitions. Word has length 60 [2023-12-22 02:29:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:43,403 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1048 transitions. [2023-12-22 02:29:43,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1048 transitions. [2023-12-22 02:29:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:29:43,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:43,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:43,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:43,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:43,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:43,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash -111579512, now seen corresponding path program 1 times [2023-12-22 02:29:43,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:43,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775112793] [2023-12-22 02:29:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:43,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:43,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:43,610 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:43,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 02:29:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:43,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:43,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:29:43,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:43,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:43,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775112793] [2023-12-22 02:29:43,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775112793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:43,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:43,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:43,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528658404] [2023-12-22 02:29:43,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:43,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:43,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:43,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:43,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:43,696 INFO L87 Difference]: Start difference. First operand 764 states and 1048 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:43,762 INFO L93 Difference]: Finished difference Result 1181 states and 1617 transitions. [2023-12-22 02:29:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-22 02:29:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:43,764 INFO L225 Difference]: With dead ends: 1181 [2023-12-22 02:29:43,764 INFO L226 Difference]: Without dead ends: 671 [2023-12-22 02:29:43,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:43,766 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 2 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:43,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 925 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-12-22 02:29:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 665. [2023-12-22 02:29:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 577 states have (on average 1.3570190641247835) internal successors, (783), 586 states have internal predecessors, (783), 54 states have call successors, (54), 29 states have call predecessors, (54), 32 states have return successors, (72), 50 states have call predecessors, (72), 52 states have call successors, (72) [2023-12-22 02:29:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 909 transitions. [2023-12-22 02:29:43,785 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 909 transitions. Word has length 60 [2023-12-22 02:29:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:43,785 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 909 transitions. [2023-12-22 02:29:43,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-22 02:29:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 909 transitions. [2023-12-22 02:29:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:29:43,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:43,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:43,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:44,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:44,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:44,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1686060104, now seen corresponding path program 1 times [2023-12-22 02:29:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:44,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732291833] [2023-12-22 02:29:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:44,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:44,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:44,005 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:44,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 02:29:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:44,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:44,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:44,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:29:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:29:44,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732291833] [2023-12-22 02:29:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732291833] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 02:29:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 02:29:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-12-22 02:29:44,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081659188] [2023-12-22 02:29:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:44,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:44,171 INFO L87 Difference]: Start difference. First operand 665 states and 909 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:29:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:44,311 INFO L93 Difference]: Finished difference Result 714 states and 970 transitions. [2023-12-22 02:29:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:44,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-22 02:29:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:44,314 INFO L225 Difference]: With dead ends: 714 [2023-12-22 02:29:44,314 INFO L226 Difference]: Without dead ends: 711 [2023-12-22 02:29:44,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:44,315 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 589 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:44,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 382 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:29:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-22 02:29:44,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2023-12-22 02:29:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 577 states have (on average 1.3535528596187174) internal successors, (781), 585 states have internal predecessors, (781), 53 states have call successors, (53), 29 states have call predecessors, (53), 32 states have return successors, (72), 50 states have call predecessors, (72), 52 states have call successors, (72) [2023-12-22 02:29:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 906 transitions. [2023-12-22 02:29:44,339 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 906 transitions. Word has length 60 [2023-12-22 02:29:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:44,339 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 906 transitions. [2023-12-22 02:29:44,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-22 02:29:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 906 transitions. [2023-12-22 02:29:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 02:29:44,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:44,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:44,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:44,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:44,544 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:44,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:44,544 INFO L85 PathProgramCache]: Analyzing trace with hash 727444710, now seen corresponding path program 1 times [2023-12-22 02:29:44,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:44,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997505155] [2023-12-22 02:29:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:44,545 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 [2023-12-22 02:29:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:44,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:44,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:29:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:44,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:29:44,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:44,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:29:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:29:44,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:44,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997505155] [2023-12-22 02:29:44,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997505155] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:29:44,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:29:44,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:29:44,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257297611] [2023-12-22 02:29:44,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:29:44,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:29:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:29:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:29:44,885 INFO L87 Difference]: Start difference. First operand 664 states and 906 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:29:45,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:45,112 INFO L93 Difference]: Finished difference Result 1383 states and 1844 transitions. [2023-12-22 02:29:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:29:45,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2023-12-22 02:29:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:45,117 INFO L225 Difference]: With dead ends: 1383 [2023-12-22 02:29:45,117 INFO L226 Difference]: Without dead ends: 1380 [2023-12-22 02:29:45,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:29:45,118 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 764 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:45,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1111 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2023-12-22 02:29:45,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 967. [2023-12-22 02:29:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 844 states have (on average 1.335308056872038) internal successors, (1127), 858 states have internal predecessors, (1127), 72 states have call successors, (72), 42 states have call predecessors, (72), 49 states have return successors, (103), 67 states have call predecessors, (103), 71 states have call successors, (103) [2023-12-22 02:29:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1302 transitions. [2023-12-22 02:29:45,164 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1302 transitions. Word has length 61 [2023-12-22 02:29:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:45,165 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1302 transitions. [2023-12-22 02:29:45,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-22 02:29:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1302 transitions. [2023-12-22 02:29:45,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:29:45,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:45,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:45,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 02:29:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:45,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:45,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1746083503, now seen corresponding path program 2 times [2023-12-22 02:29:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:45,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089967685] [2023-12-22 02:29:45,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:29:45,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:45,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:45,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:45,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 02:29:45,485 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:29:45,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:29:45,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:45,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 02:29:45,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:45,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089967685] [2023-12-22 02:29:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089967685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:45,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519892828] [2023-12-22 02:29:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:45,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:45,539 INFO L87 Difference]: Start difference. First operand 967 states and 1302 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:29:45,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:45,639 INFO L93 Difference]: Finished difference Result 1522 states and 2033 transitions. [2023-12-22 02:29:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:45,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-22 02:29:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:45,644 INFO L225 Difference]: With dead ends: 1522 [2023-12-22 02:29:45,644 INFO L226 Difference]: Without dead ends: 871 [2023-12-22 02:29:45,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:45,646 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 301 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:45,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 399 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-22 02:29:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 859. [2023-12-22 02:29:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 749 states have (on average 1.3337783711615487) internal successors, (999), 763 states have internal predecessors, (999), 65 states have call successors, (65), 37 states have call predecessors, (65), 43 states have return successors, (92), 59 states have call predecessors, (92), 64 states have call successors, (92) [2023-12-22 02:29:45,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1156 transitions. [2023-12-22 02:29:45,693 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1156 transitions. Word has length 78 [2023-12-22 02:29:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:45,694 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1156 transitions. [2023-12-22 02:29:45,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-22 02:29:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1156 transitions. [2023-12-22 02:29:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:45,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:45,699 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] [2023-12-22 02:29:45,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:45,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:45,902 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:45,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 748720928, now seen corresponding path program 1 times [2023-12-22 02:29:45,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:45,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930572005] [2023-12-22 02:29:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:45,905 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:45,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 02:29:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:46,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:46,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:46,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:46,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:46,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930572005] [2023-12-22 02:29:46,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930572005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:46,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:46,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:46,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587917007] [2023-12-22 02:29:46,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:46,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:46,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:46,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:46,023 INFO L87 Difference]: Start difference. First operand 859 states and 1156 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:46,113 INFO L93 Difference]: Finished difference Result 1013 states and 1394 transitions. [2023-12-22 02:29:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:46,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:46,116 INFO L225 Difference]: With dead ends: 1013 [2023-12-22 02:29:46,116 INFO L226 Difference]: Without dead ends: 859 [2023-12-22 02:29:46,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:46,117 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 242 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:46,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 381 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-12-22 02:29:46,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2023-12-22 02:29:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 749 states have (on average 1.3324432576769025) internal successors, (998), 763 states have internal predecessors, (998), 65 states have call successors, (65), 37 states have call predecessors, (65), 43 states have return successors, (92), 59 states have call predecessors, (92), 64 states have call successors, (92) [2023-12-22 02:29:46,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1155 transitions. [2023-12-22 02:29:46,161 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1155 transitions. Word has length 81 [2023-12-22 02:29:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:46,161 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1155 transitions. [2023-12-22 02:29:46,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1155 transitions. [2023-12-22 02:29:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:46,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:46,162 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] [2023-12-22 02:29:46,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:46,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:46,366 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:46,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1716071582, now seen corresponding path program 1 times [2023-12-22 02:29:46,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:46,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696644852] [2023-12-22 02:29:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:46,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:46,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:46,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:46,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 02:29:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:46,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:46,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:46,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:46,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:46,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696644852] [2023-12-22 02:29:46,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696644852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:46,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646975671] [2023-12-22 02:29:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:46,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:46,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:46,475 INFO L87 Difference]: Start difference. First operand 859 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:46,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:46,846 INFO L93 Difference]: Finished difference Result 1180 states and 1660 transitions. [2023-12-22 02:29:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:29:46,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:46,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:46,850 INFO L225 Difference]: With dead ends: 1180 [2023-12-22 02:29:46,850 INFO L226 Difference]: Without dead ends: 1028 [2023-12-22 02:29:46,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:46,851 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 549 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:46,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 757 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-12-22 02:29:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1015. [2023-12-22 02:29:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 885 states have (on average 1.3717514124293786) internal successors, (1214), 900 states have internal predecessors, (1214), 78 states have call successors, (78), 43 states have call predecessors, (78), 50 states have return successors, (106), 72 states have call predecessors, (106), 77 states have call successors, (106) [2023-12-22 02:29:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1398 transitions. [2023-12-22 02:29:46,900 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1398 transitions. Word has length 81 [2023-12-22 02:29:46,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:46,900 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1398 transitions. [2023-12-22 02:29:46,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:46,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1398 transitions. [2023-12-22 02:29:46,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:46,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:46,901 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] [2023-12-22 02:29:46,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:47,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:47,105 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:47,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:47,106 INFO L85 PathProgramCache]: Analyzing trace with hash 298272478, now seen corresponding path program 1 times [2023-12-22 02:29:47,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:47,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369099774] [2023-12-22 02:29:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:47,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:47,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:47,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 02:29:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:47,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:47,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:47,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:47,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:47,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369099774] [2023-12-22 02:29:47,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369099774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:47,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:47,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:47,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426531580] [2023-12-22 02:29:47,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:47,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:47,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:47,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:47,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:47,226 INFO L87 Difference]: Start difference. First operand 1015 states and 1398 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:47,515 INFO L93 Difference]: Finished difference Result 1323 states and 1883 transitions. [2023-12-22 02:29:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:47,518 INFO L225 Difference]: With dead ends: 1323 [2023-12-22 02:29:47,519 INFO L226 Difference]: Without dead ends: 1015 [2023-12-22 02:29:47,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:47,520 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 422 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:47,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 521 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-12-22 02:29:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2023-12-22 02:29:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 885 states have (on average 1.3638418079096044) internal successors, (1207), 900 states have internal predecessors, (1207), 78 states have call successors, (78), 43 states have call predecessors, (78), 50 states have return successors, (106), 72 states have call predecessors, (106), 77 states have call successors, (106) [2023-12-22 02:29:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1391 transitions. [2023-12-22 02:29:47,580 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1391 transitions. Word has length 81 [2023-12-22 02:29:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:47,580 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1391 transitions. [2023-12-22 02:29:47,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1391 transitions. [2023-12-22 02:29:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:47,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:47,582 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] [2023-12-22 02:29:47,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:47,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:47,785 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:47,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash -855841634, now seen corresponding path program 1 times [2023-12-22 02:29:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969438018] [2023-12-22 02:29:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:47,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:47,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:47,787 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:47,817 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 (15)] Waiting until timeout for monitored process [2023-12-22 02:29:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:47,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:47,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:47,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:47,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:47,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969438018] [2023-12-22 02:29:47,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969438018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:47,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656710758] [2023-12-22 02:29:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:47,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:47,895 INFO L87 Difference]: Start difference. First operand 1015 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:48,178 INFO L93 Difference]: Finished difference Result 1323 states and 1869 transitions. [2023-12-22 02:29:48,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:48,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:48,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:48,182 INFO L225 Difference]: With dead ends: 1323 [2023-12-22 02:29:48,182 INFO L226 Difference]: Without dead ends: 1015 [2023-12-22 02:29:48,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:48,183 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 415 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:48,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 514 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:48,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-12-22 02:29:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2023-12-22 02:29:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 885 states have (on average 1.3559322033898304) internal successors, (1200), 900 states have internal predecessors, (1200), 78 states have call successors, (78), 43 states have call predecessors, (78), 50 states have return successors, (106), 72 states have call predecessors, (106), 77 states have call successors, (106) [2023-12-22 02:29:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1384 transitions. [2023-12-22 02:29:48,246 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1384 transitions. Word has length 81 [2023-12-22 02:29:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:48,247 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1384 transitions. [2023-12-22 02:29:48,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1384 transitions. [2023-12-22 02:29:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:48,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:48,248 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] [2023-12-22 02:29:48,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:48,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:48,452 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:48,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:48,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1618932318, now seen corresponding path program 1 times [2023-12-22 02:29:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:48,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848899744] [2023-12-22 02:29:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:48,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:48,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:48,456 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:48,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:29:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:48,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:48,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:48,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:48,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848899744] [2023-12-22 02:29:48,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848899744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:48,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:48,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:48,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572177720] [2023-12-22 02:29:48,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:48,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:48,565 INFO L87 Difference]: Start difference. First operand 1015 states and 1384 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:48,855 INFO L93 Difference]: Finished difference Result 1323 states and 1855 transitions. [2023-12-22 02:29:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:48,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:48,859 INFO L225 Difference]: With dead ends: 1323 [2023-12-22 02:29:48,859 INFO L226 Difference]: Without dead ends: 1015 [2023-12-22 02:29:48,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:48,861 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 409 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:48,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 507 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-12-22 02:29:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2023-12-22 02:29:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 885 states have (on average 1.3480225988700565) internal successors, (1193), 900 states have internal predecessors, (1193), 78 states have call successors, (78), 43 states have call predecessors, (78), 50 states have return successors, (106), 72 states have call predecessors, (106), 77 states have call successors, (106) [2023-12-22 02:29:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1377 transitions. [2023-12-22 02:29:48,926 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1377 transitions. Word has length 81 [2023-12-22 02:29:48,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:48,927 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1377 transitions. [2023-12-22 02:29:48,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1377 transitions. [2023-12-22 02:29:48,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:48,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:48,928 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] [2023-12-22 02:29:48,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:49,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:49,133 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:49,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -240898914, now seen corresponding path program 1 times [2023-12-22 02:29:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:49,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947749483] [2023-12-22 02:29:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:49,135 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:49,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 02:29:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:49,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:49,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:49,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:49,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:49,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947749483] [2023-12-22 02:29:49,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947749483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:49,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:49,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:49,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692281146] [2023-12-22 02:29:49,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:49,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:49,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:49,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:49,249 INFO L87 Difference]: Start difference. First operand 1015 states and 1377 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:49,595 INFO L93 Difference]: Finished difference Result 1393 states and 1953 transitions. [2023-12-22 02:29:49,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:49,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:49,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:49,598 INFO L225 Difference]: With dead ends: 1393 [2023-12-22 02:29:49,598 INFO L226 Difference]: Without dead ends: 1085 [2023-12-22 02:29:49,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:49,600 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 445 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:49,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 501 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2023-12-22 02:29:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2023-12-22 02:29:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 949 states have (on average 1.3466807165437302) internal successors, (1278), 964 states have internal predecessors, (1278), 80 states have call successors, (80), 47 states have call predecessors, (80), 54 states have return successors, (108), 74 states have call predecessors, (108), 79 states have call successors, (108) [2023-12-22 02:29:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1466 transitions. [2023-12-22 02:29:49,652 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1466 transitions. Word has length 81 [2023-12-22 02:29:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:49,652 INFO L495 AbstractCegarLoop]: Abstraction has 1085 states and 1466 transitions. [2023-12-22 02:29:49,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1466 transitions. [2023-12-22 02:29:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:49,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:49,654 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] [2023-12-22 02:29:49,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:49,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:49,857 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:49,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -336639555, now seen corresponding path program 1 times [2023-12-22 02:29:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468087118] [2023-12-22 02:29:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:49,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:49,859 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:49,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 02:29:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:49,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:49,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:49,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:49,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468087118] [2023-12-22 02:29:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468087118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:49,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:49,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687815163] [2023-12-22 02:29:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:49,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:49,982 INFO L87 Difference]: Start difference. First operand 1085 states and 1466 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:50,346 INFO L93 Difference]: Finished difference Result 1533 states and 2131 transitions. [2023-12-22 02:29:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:50,350 INFO L225 Difference]: With dead ends: 1533 [2023-12-22 02:29:50,350 INFO L226 Difference]: Without dead ends: 1155 [2023-12-22 02:29:50,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:50,351 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 438 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:50,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 494 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2023-12-22 02:29:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2023-12-22 02:29:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1013 states have (on average 1.3415597235932872) internal successors, (1359), 1028 states have internal predecessors, (1359), 82 states have call successors, (82), 51 states have call predecessors, (82), 58 states have return successors, (110), 76 states have call predecessors, (110), 81 states have call successors, (110) [2023-12-22 02:29:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1551 transitions. [2023-12-22 02:29:50,407 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1551 transitions. Word has length 81 [2023-12-22 02:29:50,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:50,408 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1551 transitions. [2023-12-22 02:29:50,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1551 transitions. [2023-12-22 02:29:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:50,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:50,409 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] [2023-12-22 02:29:50,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:50,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:50,614 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:50,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:50,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2061429442, now seen corresponding path program 1 times [2023-12-22 02:29:50,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:50,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537404625] [2023-12-22 02:29:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:50,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:50,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:50,616 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:50,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 02:29:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:50,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:50,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:50,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:50,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:50,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537404625] [2023-12-22 02:29:50,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537404625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:50,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:50,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:50,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745561327] [2023-12-22 02:29:50,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:50,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:50,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:50,757 INFO L87 Difference]: Start difference. First operand 1155 states and 1551 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:51,091 INFO L93 Difference]: Finished difference Result 1673 states and 2301 transitions. [2023-12-22 02:29:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:51,094 INFO L225 Difference]: With dead ends: 1673 [2023-12-22 02:29:51,094 INFO L226 Difference]: Without dead ends: 1225 [2023-12-22 02:29:51,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:51,096 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 432 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:51,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 487 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2023-12-22 02:29:51,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2023-12-22 02:29:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1077 states have (on average 1.3333333333333333) internal successors, (1436), 1092 states have internal predecessors, (1436), 84 states have call successors, (84), 55 states have call predecessors, (84), 62 states have return successors, (112), 78 states have call predecessors, (112), 83 states have call successors, (112) [2023-12-22 02:29:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1632 transitions. [2023-12-22 02:29:51,166 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1632 transitions. Word has length 81 [2023-12-22 02:29:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:51,166 INFO L495 AbstractCegarLoop]: Abstraction has 1225 states and 1632 transitions. [2023-12-22 02:29:51,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1632 transitions. [2023-12-22 02:29:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:51,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:51,168 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] [2023-12-22 02:29:51,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:51,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:51,383 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:51,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash -99854784, now seen corresponding path program 1 times [2023-12-22 02:29:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:51,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036789991] [2023-12-22 02:29:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:51,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:51,386 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:51,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:29:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:51,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:51,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:51,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:51,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036789991] [2023-12-22 02:29:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036789991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876394082] [2023-12-22 02:29:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:51,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:51,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:51,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:51,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:51,556 INFO L87 Difference]: Start difference. First operand 1225 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:51,953 INFO L93 Difference]: Finished difference Result 1813 states and 2463 transitions. [2023-12-22 02:29:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:51,980 INFO L225 Difference]: With dead ends: 1813 [2023-12-22 02:29:51,980 INFO L226 Difference]: Without dead ends: 1295 [2023-12-22 02:29:51,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:51,982 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 425 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:51,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 480 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2023-12-22 02:29:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2023-12-22 02:29:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1141 states have (on average 1.322524101665206) internal successors, (1509), 1156 states have internal predecessors, (1509), 86 states have call successors, (86), 59 states have call predecessors, (86), 66 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1709 transitions. [2023-12-22 02:29:52,059 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1709 transitions. Word has length 81 [2023-12-22 02:29:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:52,060 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1709 transitions. [2023-12-22 02:29:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1709 transitions. [2023-12-22 02:29:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:52,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:52,061 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] [2023-12-22 02:29:52,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-22 02:29:52,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:52,264 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:52,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1751064321, now seen corresponding path program 1 times [2023-12-22 02:29:52,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:52,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900829887] [2023-12-22 02:29:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:52,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:52,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:52,290 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:52,323 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 (21)] Waiting until timeout for monitored process [2023-12-22 02:29:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:52,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:52,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:52,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:52,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:52,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900829887] [2023-12-22 02:29:52,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900829887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:52,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:52,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:52,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448410801] [2023-12-22 02:29:52,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:52,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:52,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:52,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:52,398 INFO L87 Difference]: Start difference. First operand 1295 states and 1709 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:52,754 INFO L93 Difference]: Finished difference Result 1947 states and 2609 transitions. [2023-12-22 02:29:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:52,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:52,758 INFO L225 Difference]: With dead ends: 1947 [2023-12-22 02:29:52,758 INFO L226 Difference]: Without dead ends: 1359 [2023-12-22 02:29:52,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:52,760 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 418 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:52,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 473 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:29:52,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-12-22 02:29:52,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1359. [2023-12-22 02:29:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1203 states have (on average 1.3100581878636741) internal successors, (1576), 1218 states have internal predecessors, (1576), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1776 transitions. [2023-12-22 02:29:52,830 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1776 transitions. Word has length 81 [2023-12-22 02:29:52,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:52,830 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 1776 transitions. [2023-12-22 02:29:52,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1776 transitions. [2023-12-22 02:29:52,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:52,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:52,832 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] [2023-12-22 02:29:52,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:53,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:53,035 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:53,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash 317619393, now seen corresponding path program 1 times [2023-12-22 02:29:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392660581] [2023-12-22 02:29:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:53,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:53,037 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:53,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 02:29:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:53,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:53,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:53,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:53,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:53,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392660581] [2023-12-22 02:29:53,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392660581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:53,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:53,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848037730] [2023-12-22 02:29:53,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:53,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:53,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:53,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:53,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:53,123 INFO L87 Difference]: Start difference. First operand 1359 states and 1776 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:53,231 INFO L93 Difference]: Finished difference Result 2066 states and 2728 transitions. [2023-12-22 02:29:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:53,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:53,234 INFO L225 Difference]: With dead ends: 2066 [2023-12-22 02:29:53,234 INFO L226 Difference]: Without dead ends: 1415 [2023-12-22 02:29:53,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:53,236 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 38 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:53,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 837 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:53,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-12-22 02:29:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1363. [2023-12-22 02:29:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1207 states have (on average 1.3007456503728252) internal successors, (1570), 1222 states have internal predecessors, (1570), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1770 transitions. [2023-12-22 02:29:53,329 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1770 transitions. Word has length 81 [2023-12-22 02:29:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:53,329 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 1770 transitions. [2023-12-22 02:29:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1770 transitions. [2023-12-22 02:29:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:53,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:53,330 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] [2023-12-22 02:29:53,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:53,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:53,534 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:53,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1710966717, now seen corresponding path program 1 times [2023-12-22 02:29:53,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082496953] [2023-12-22 02:29:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:53,536 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:53,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 02:29:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:53,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:53,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:53,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:53,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082496953] [2023-12-22 02:29:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082496953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:53,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:53,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980711713] [2023-12-22 02:29:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:53,623 INFO L87 Difference]: Start difference. First operand 1363 states and 1770 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:53,729 INFO L93 Difference]: Finished difference Result 2062 states and 2700 transitions. [2023-12-22 02:29:53,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:53,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:53,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:53,733 INFO L225 Difference]: With dead ends: 2062 [2023-12-22 02:29:53,733 INFO L226 Difference]: Without dead ends: 1407 [2023-12-22 02:29:53,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:53,735 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 29 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:53,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 841 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2023-12-22 02:29:53,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1367. [2023-12-22 02:29:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1211 states have (on average 1.2914946325350949) internal successors, (1564), 1226 states have internal predecessors, (1564), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1764 transitions. [2023-12-22 02:29:53,815 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1764 transitions. Word has length 81 [2023-12-22 02:29:53,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:53,815 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1764 transitions. [2023-12-22 02:29:53,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1764 transitions. [2023-12-22 02:29:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:53,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:53,816 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] [2023-12-22 02:29:53,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:54,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:54,019 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:54,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash 217305985, now seen corresponding path program 1 times [2023-12-22 02:29:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:54,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286773410] [2023-12-22 02:29:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:54,021 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:54,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 02:29:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:54,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:54,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:54,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:54,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:54,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:54,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286773410] [2023-12-22 02:29:54,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286773410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:54,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:54,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:54,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817946491] [2023-12-22 02:29:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:54,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:54,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:54,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:54,097 INFO L87 Difference]: Start difference. First operand 1367 states and 1764 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:54,205 INFO L93 Difference]: Finished difference Result 2046 states and 2656 transitions. [2023-12-22 02:29:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:54,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:54,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:54,208 INFO L225 Difference]: With dead ends: 2046 [2023-12-22 02:29:54,208 INFO L226 Difference]: Without dead ends: 1387 [2023-12-22 02:29:54,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:54,210 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 11 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:54,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 840 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2023-12-22 02:29:54,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1371. [2023-12-22 02:29:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1215 states have (on average 1.2823045267489712) internal successors, (1558), 1230 states have internal predecessors, (1558), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1758 transitions. [2023-12-22 02:29:54,295 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1758 transitions. Word has length 81 [2023-12-22 02:29:54,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:54,295 INFO L495 AbstractCegarLoop]: Abstraction has 1371 states and 1758 transitions. [2023-12-22 02:29:54,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:54,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1758 transitions. [2023-12-22 02:29:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:54,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:54,298 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] [2023-12-22 02:29:54,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:54,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:54,501 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:54,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash -177060801, now seen corresponding path program 1 times [2023-12-22 02:29:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:54,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104063758] [2023-12-22 02:29:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:54,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:54,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:54,503 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:54,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 02:29:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:54,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:54,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:54,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:54,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:54,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104063758] [2023-12-22 02:29:54,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104063758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:54,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:54,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:54,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341812651] [2023-12-22 02:29:54,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:54,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:54,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:54,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:54,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:54,583 INFO L87 Difference]: Start difference. First operand 1371 states and 1758 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:54,749 INFO L93 Difference]: Finished difference Result 2042 states and 2628 transitions. [2023-12-22 02:29:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:54,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:54,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:54,754 INFO L225 Difference]: With dead ends: 2042 [2023-12-22 02:29:54,754 INFO L226 Difference]: Without dead ends: 1379 [2023-12-22 02:29:54,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:54,756 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 2 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:54,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 841 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:29:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2023-12-22 02:29:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1375. [2023-12-22 02:29:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1219 states have (on average 1.273174733388023) internal successors, (1552), 1234 states have internal predecessors, (1552), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1752 transitions. [2023-12-22 02:29:54,854 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1752 transitions. Word has length 81 [2023-12-22 02:29:54,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:54,854 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1752 transitions. [2023-12-22 02:29:54,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1752 transitions. [2023-12-22 02:29:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:54,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:54,855 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] [2023-12-22 02:29:54,860 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 [2023-12-22 02:29:55,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:55,059 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:55,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash 524539073, now seen corresponding path program 1 times [2023-12-22 02:29:55,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:55,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687677599] [2023-12-22 02:29:55,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:55,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:55,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:55,065 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:55,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 02:29:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:55,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:29:55,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:55,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:55,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:55,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687677599] [2023-12-22 02:29:55,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687677599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:55,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:55,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:55,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28535483] [2023-12-22 02:29:55,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:55,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:29:55,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:55,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:29:55,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:55,245 INFO L87 Difference]: Start difference. First operand 1375 states and 1752 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:55,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:55,530 INFO L93 Difference]: Finished difference Result 2043 states and 2591 transitions. [2023-12-22 02:29:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:29:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:55,534 INFO L225 Difference]: With dead ends: 2043 [2023-12-22 02:29:55,534 INFO L226 Difference]: Without dead ends: 1375 [2023-12-22 02:29:55,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:29:55,535 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 343 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:55,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 465 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2023-12-22 02:29:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1375. [2023-12-22 02:29:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1219 states have (on average 1.2674323215750616) internal successors, (1545), 1234 states have internal predecessors, (1545), 86 states have call successors, (86), 61 states have call predecessors, (86), 68 states have return successors, (114), 80 states have call predecessors, (114), 85 states have call successors, (114) [2023-12-22 02:29:55,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1745 transitions. [2023-12-22 02:29:55,607 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1745 transitions. Word has length 81 [2023-12-22 02:29:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:55,607 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1745 transitions. [2023-12-22 02:29:55,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1745 transitions. [2023-12-22 02:29:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:29:55,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:55,609 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] [2023-12-22 02:29:55,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:55,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:55,812 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:55,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:55,813 INFO L85 PathProgramCache]: Analyzing trace with hash 665087683, now seen corresponding path program 1 times [2023-12-22 02:29:55,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:55,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655477004] [2023-12-22 02:29:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:55,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:55,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:55,817 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:55,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 02:29:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:55,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:55,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:29:55,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:55,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:55,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655477004] [2023-12-22 02:29:55,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655477004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:55,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:55,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:29:55,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142450953] [2023-12-22 02:29:55,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:55,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:55,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:55,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:55,956 INFO L87 Difference]: Start difference. First operand 1375 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:29:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:56,099 INFO L93 Difference]: Finished difference Result 2684 states and 3382 transitions. [2023-12-22 02:29:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:56,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 81 [2023-12-22 02:29:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:56,113 INFO L225 Difference]: With dead ends: 2684 [2023-12-22 02:29:56,113 INFO L226 Difference]: Without dead ends: 2017 [2023-12-22 02:29:56,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:56,115 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 218 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:56,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 493 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2023-12-22 02:29:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2015. [2023-12-22 02:29:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 1793 states have (on average 1.2537646402677078) internal successors, (2248), 1811 states have internal predecessors, (2248), 121 states have call successors, (121), 91 states have call predecessors, (121), 99 states have return successors, (150), 113 states have call predecessors, (150), 120 states have call successors, (150) [2023-12-22 02:29:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2519 transitions. [2023-12-22 02:29:56,239 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2519 transitions. Word has length 81 [2023-12-22 02:29:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:56,239 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 2519 transitions. [2023-12-22 02:29:56,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:29:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2519 transitions. [2023-12-22 02:29:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 02:29:56,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:56,242 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:56,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:56,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:56,445 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:56,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash -557587446, now seen corresponding path program 1 times [2023-12-22 02:29:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:56,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166366228] [2023-12-22 02:29:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:56,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:56,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:56,447 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:56,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 02:29:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:56,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:29:56,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:29:56,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:56,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:56,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166366228] [2023-12-22 02:29:56,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166366228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:56,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:56,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10802438] [2023-12-22 02:29:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:56,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:56,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:56,552 INFO L87 Difference]: Start difference. First operand 2015 states and 2519 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:56,839 INFO L93 Difference]: Finished difference Result 2739 states and 3460 transitions. [2023-12-22 02:29:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-22 02:29:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:56,845 INFO L225 Difference]: With dead ends: 2739 [2023-12-22 02:29:56,845 INFO L226 Difference]: Without dead ends: 2048 [2023-12-22 02:29:56,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:56,847 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 356 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:56,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 379 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:56,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2023-12-22 02:29:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2015. [2023-12-22 02:29:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 1793 states have (on average 1.2453987730061349) internal successors, (2233), 1811 states have internal predecessors, (2233), 121 states have call successors, (121), 91 states have call predecessors, (121), 99 states have return successors, (149), 113 states have call predecessors, (149), 120 states have call successors, (149) [2023-12-22 02:29:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2503 transitions. [2023-12-22 02:29:56,969 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2503 transitions. Word has length 92 [2023-12-22 02:29:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:56,969 INFO L495 AbstractCegarLoop]: Abstraction has 2015 states and 2503 transitions. [2023-12-22 02:29:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:29:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2503 transitions. [2023-12-22 02:29:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 02:29:56,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:56,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:56,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:57,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:57,175 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:57,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1918798746, now seen corresponding path program 1 times [2023-12-22 02:29:57,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:57,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35061717] [2023-12-22 02:29:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:57,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:57,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:57,178 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:57,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 02:29:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:57,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:57,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:57,272 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-22 02:29:57,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:57,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:57,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35061717] [2023-12-22 02:29:57,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35061717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:57,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:57,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:57,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805344444] [2023-12-22 02:29:57,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:57,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:57,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:57,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:57,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:57,273 INFO L87 Difference]: Start difference. First operand 2015 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:29:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:57,445 INFO L93 Difference]: Finished difference Result 2298 states and 2854 transitions. [2023-12-22 02:29:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 93 [2023-12-22 02:29:57,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:57,448 INFO L225 Difference]: With dead ends: 2298 [2023-12-22 02:29:57,448 INFO L226 Difference]: Without dead ends: 1319 [2023-12-22 02:29:57,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:57,450 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 54 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:57,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 576 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2023-12-22 02:29:57,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2023-12-22 02:29:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1182 states have (on average 1.2402707275803722) internal successors, (1466), 1187 states have internal predecessors, (1466), 74 states have call successors, (74), 60 states have call predecessors, (74), 62 states have return successors, (76), 72 states have call predecessors, (76), 74 states have call successors, (76) [2023-12-22 02:29:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1616 transitions. [2023-12-22 02:29:57,510 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1616 transitions. Word has length 93 [2023-12-22 02:29:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:57,511 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1616 transitions. [2023-12-22 02:29:57,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-22 02:29:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1616 transitions. [2023-12-22 02:29:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:29:57,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:57,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:57,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:57,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:57,716 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:57,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash 169583342, now seen corresponding path program 1 times [2023-12-22 02:29:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:57,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224239708] [2023-12-22 02:29:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:57,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:57,719 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:57,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 02:29:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:57,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:57,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:29:57,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:57,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:57,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224239708] [2023-12-22 02:29:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224239708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:57,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:29:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116364288] [2023-12-22 02:29:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:57,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:57,920 INFO L87 Difference]: Start difference. First operand 1319 states and 1616 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:29:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:58,099 INFO L93 Difference]: Finished difference Result 3750 states and 4627 transitions. [2023-12-22 02:29:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:29:58,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 131 [2023-12-22 02:29:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:58,107 INFO L225 Difference]: With dead ends: 3750 [2023-12-22 02:29:58,107 INFO L226 Difference]: Without dead ends: 2443 [2023-12-22 02:29:58,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:58,111 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 131 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:58,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 420 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:29:58,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2023-12-22 02:29:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2437. [2023-12-22 02:29:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2184 states have (on average 1.22985347985348) internal successors, (2686), 2193 states have internal predecessors, (2686), 136 states have call successors, (136), 112 states have call predecessors, (136), 116 states have return successors, (140), 132 states have call predecessors, (140), 136 states have call successors, (140) [2023-12-22 02:29:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 2962 transitions. [2023-12-22 02:29:58,271 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 2962 transitions. Word has length 131 [2023-12-22 02:29:58,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:58,272 INFO L495 AbstractCegarLoop]: Abstraction has 2437 states and 2962 transitions. [2023-12-22 02:29:58,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:29:58,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 2962 transitions. [2023-12-22 02:29:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:29:58,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:58,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:58,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:58,476 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:58,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash -681872625, now seen corresponding path program 1 times [2023-12-22 02:29:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:58,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778914074] [2023-12-22 02:29:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:58,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:58,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:58,478 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:58,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 02:29:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:58,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:29:58,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:29:58,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:58,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:58,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778914074] [2023-12-22 02:29:58,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778914074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:58,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:58,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:29:58,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778713815] [2023-12-22 02:29:58,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:58,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:29:58,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:29:58,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:29:58,682 INFO L87 Difference]: Start difference. First operand 2437 states and 2962 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:29:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:29:59,118 INFO L93 Difference]: Finished difference Result 7178 states and 8740 transitions. [2023-12-22 02:29:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:29:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 131 [2023-12-22 02:29:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:29:59,134 INFO L225 Difference]: With dead ends: 7178 [2023-12-22 02:29:59,134 INFO L226 Difference]: Without dead ends: 4754 [2023-12-22 02:29:59,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:29:59,137 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 260 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:29:59,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 543 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:29:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2023-12-22 02:29:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4752. [2023-12-22 02:29:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 4256 states have (on average 1.2199248120300752) internal successors, (5192), 4278 states have internal predecessors, (5192), 263 states have call successors, (263), 216 states have call predecessors, (263), 232 states have return successors, (303), 259 states have call predecessors, (303), 263 states have call successors, (303) [2023-12-22 02:29:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 5758 transitions. [2023-12-22 02:29:59,474 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 5758 transitions. Word has length 131 [2023-12-22 02:29:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:29:59,474 INFO L495 AbstractCegarLoop]: Abstraction has 4752 states and 5758 transitions. [2023-12-22 02:29:59,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:29:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 5758 transitions. [2023-12-22 02:29:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:29:59,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:29:59,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:29:59,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-22 02:29:59,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:59,682 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:29:59,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:29:59,683 INFO L85 PathProgramCache]: Analyzing trace with hash 265165261, now seen corresponding path program 1 times [2023-12-22 02:29:59,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:29:59,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108314424] [2023-12-22 02:29:59,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:29:59,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:29:59,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:29:59,684 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:29:59,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 02:29:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:29:59,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:29:59,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:29:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:29:59,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:29:59,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:29:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108314424] [2023-12-22 02:29:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108314424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:29:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:29:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:29:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227821334] [2023-12-22 02:29:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:29:59,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:29:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:29:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:29:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:29:59,775 INFO L87 Difference]: Start difference. First operand 4752 states and 5758 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:00,004 INFO L93 Difference]: Finished difference Result 8378 states and 10141 transitions. [2023-12-22 02:30:00,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 131 [2023-12-22 02:30:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:00,012 INFO L225 Difference]: With dead ends: 8378 [2023-12-22 02:30:00,012 INFO L226 Difference]: Without dead ends: 3639 [2023-12-22 02:30:00,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:00,017 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:00,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 203 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2023-12-22 02:30:00,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 3639. [2023-12-22 02:30:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 3262 states have (on average 1.2204169221336603) internal successors, (3981), 3279 states have internal predecessors, (3981), 198 states have call successors, (198), 164 states have call predecessors, (198), 178 states have return successors, (224), 196 states have call predecessors, (224), 198 states have call successors, (224) [2023-12-22 02:30:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 4403 transitions. [2023-12-22 02:30:00,212 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 4403 transitions. Word has length 131 [2023-12-22 02:30:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:00,212 INFO L495 AbstractCegarLoop]: Abstraction has 3639 states and 4403 transitions. [2023-12-22 02:30:00,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 4403 transitions. [2023-12-22 02:30:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:30:00,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:00,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:00,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:00,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:00,418 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:00,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:00,419 INFO L85 PathProgramCache]: Analyzing trace with hash -637438540, now seen corresponding path program 1 times [2023-12-22 02:30:00,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:00,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843006200] [2023-12-22 02:30:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:00,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:00,421 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:00,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 02:30:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:00,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:30:00,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:00,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:00,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:00,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843006200] [2023-12-22 02:30:00,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843006200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:00,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:00,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:30:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270503996] [2023-12-22 02:30:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:00,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:30:00,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:30:00,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:30:00,647 INFO L87 Difference]: Start difference. First operand 3639 states and 4403 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:01,166 INFO L93 Difference]: Finished difference Result 11507 states and 13874 transitions. [2023-12-22 02:30:01,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:30:01,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 133 [2023-12-22 02:30:01,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:01,179 INFO L225 Difference]: With dead ends: 11507 [2023-12-22 02:30:01,179 INFO L226 Difference]: Without dead ends: 7881 [2023-12-22 02:30:01,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:30:01,184 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 256 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:01,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 534 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:30:01,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2023-12-22 02:30:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7639. [2023-12-22 02:30:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7639 states, 6835 states have (on average 1.2086320409656182) internal successors, (8261), 6925 states have internal predecessors, (8261), 371 states have call successors, (371), 304 states have call predecessors, (371), 432 states have return successors, (542), 411 states have call predecessors, (542), 371 states have call successors, (542) [2023-12-22 02:30:01,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7639 states to 7639 states and 9174 transitions. [2023-12-22 02:30:01,660 INFO L78 Accepts]: Start accepts. Automaton has 7639 states and 9174 transitions. Word has length 133 [2023-12-22 02:30:01,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:01,661 INFO L495 AbstractCegarLoop]: Abstraction has 7639 states and 9174 transitions. [2023-12-22 02:30:01,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:01,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7639 states and 9174 transitions. [2023-12-22 02:30:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:30:01,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:01,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:01,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:01,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:01,868 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:01,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1344035146, now seen corresponding path program 1 times [2023-12-22 02:30:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:01,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093816588] [2023-12-22 02:30:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:01,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:01,870 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:01,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 02:30:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:01,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:01,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:30:02,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:02,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:02,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093816588] [2023-12-22 02:30:02,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093816588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:02,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:02,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:30:02,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736319488] [2023-12-22 02:30:02,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:02,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:02,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:02,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:02,002 INFO L87 Difference]: Start difference. First operand 7639 states and 9174 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:02,384 INFO L93 Difference]: Finished difference Result 15260 states and 18319 transitions. [2023-12-22 02:30:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:02,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 133 [2023-12-22 02:30:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:02,400 INFO L225 Difference]: With dead ends: 15260 [2023-12-22 02:30:02,400 INFO L226 Difference]: Without dead ends: 7633 [2023-12-22 02:30:02,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:02,413 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:02,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 202 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2023-12-22 02:30:02,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7633. [2023-12-22 02:30:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7633 states, 6832 states have (on average 1.2084309133489461) internal successors, (8256), 6921 states have internal predecessors, (8256), 368 states have call successors, (368), 304 states have call predecessors, (368), 432 states have return successors, (538), 408 states have call predecessors, (538), 368 states have call successors, (538) [2023-12-22 02:30:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7633 states to 7633 states and 9162 transitions. [2023-12-22 02:30:02,826 INFO L78 Accepts]: Start accepts. Automaton has 7633 states and 9162 transitions. Word has length 133 [2023-12-22 02:30:02,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:02,826 INFO L495 AbstractCegarLoop]: Abstraction has 7633 states and 9162 transitions. [2023-12-22 02:30:02,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7633 states and 9162 transitions. [2023-12-22 02:30:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:30:02,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:02,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:02,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:03,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:03,034 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:03,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1547015311, now seen corresponding path program 1 times [2023-12-22 02:30:03,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:03,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109690892] [2023-12-22 02:30:03,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:03,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:03,036 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:03,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 02:30:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:03,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:30:03,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:03,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:03,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:03,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109690892] [2023-12-22 02:30:03,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109690892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:03,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:03,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:30:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260331916] [2023-12-22 02:30:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:03,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:30:03,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:30:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:30:03,272 INFO L87 Difference]: Start difference. First operand 7633 states and 9162 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:04,320 INFO L93 Difference]: Finished difference Result 21742 states and 26060 transitions. [2023-12-22 02:30:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:30:04,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 135 [2023-12-22 02:30:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:04,354 INFO L225 Difference]: With dead ends: 21742 [2023-12-22 02:30:04,354 INFO L226 Difference]: Without dead ends: 14122 [2023-12-22 02:30:04,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:30:04,368 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 246 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:04,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 482 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:30:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2023-12-22 02:30:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14120. [2023-12-22 02:30:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14120 states, 12616 states have (on average 1.200856055802156) internal successors, (15150), 12794 states have internal predecessors, (15150), 687 states have call successors, (687), 560 states have call predecessors, (687), 816 states have return successors, (1039), 767 states have call predecessors, (1039), 687 states have call successors, (1039) [2023-12-22 02:30:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14120 states to 14120 states and 16876 transitions. [2023-12-22 02:30:05,183 INFO L78 Accepts]: Start accepts. Automaton has 14120 states and 16876 transitions. Word has length 135 [2023-12-22 02:30:05,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:05,184 INFO L495 AbstractCegarLoop]: Abstraction has 14120 states and 16876 transitions. [2023-12-22 02:30:05,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 14120 states and 16876 transitions. [2023-12-22 02:30:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:30:05,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:05,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:05,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:05,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:05,394 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:05,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1117357005, now seen corresponding path program 1 times [2023-12-22 02:30:05,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:05,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632365072] [2023-12-22 02:30:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:05,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:05,396 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:05,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 02:30:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:05,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:05,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:30:05,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:05,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:05,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632365072] [2023-12-22 02:30:05,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632365072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:05,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:05,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:30:05,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162693207] [2023-12-22 02:30:05,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:05,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:05,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:05,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:05,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:05,527 INFO L87 Difference]: Start difference. First operand 14120 states and 16876 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:06,232 INFO L93 Difference]: Finished difference Result 28222 states and 33725 transitions. [2023-12-22 02:30:06,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 135 [2023-12-22 02:30:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:06,261 INFO L225 Difference]: With dead ends: 28222 [2023-12-22 02:30:06,261 INFO L226 Difference]: Without dead ends: 14115 [2023-12-22 02:30:06,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:06,278 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 213 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:06,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 201 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14115 states. [2023-12-22 02:30:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14115 to 14115. [2023-12-22 02:30:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14115 states, 12614 states have (on average 1.2008086253369272) internal successors, (15147), 12791 states have internal predecessors, (15147), 684 states have call successors, (684), 560 states have call predecessors, (684), 816 states have return successors, (1036), 764 states have call predecessors, (1036), 684 states have call successors, (1036) [2023-12-22 02:30:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14115 states to 14115 states and 16867 transitions. [2023-12-22 02:30:07,266 INFO L78 Accepts]: Start accepts. Automaton has 14115 states and 16867 transitions. Word has length 135 [2023-12-22 02:30:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:07,266 INFO L495 AbstractCegarLoop]: Abstraction has 14115 states and 16867 transitions. [2023-12-22 02:30:07,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:30:07,266 INFO L276 IsEmpty]: Start isEmpty. Operand 14115 states and 16867 transitions. [2023-12-22 02:30:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 02:30:07,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:07,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:07,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:07,476 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:07,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1015926668, now seen corresponding path program 1 times [2023-12-22 02:30:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:07,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678265711] [2023-12-22 02:30:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:07,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:07,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:07,478 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:07,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 02:30:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:07,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:30:07,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:07,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:07,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:07,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678265711] [2023-12-22 02:30:07,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678265711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:07,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:07,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:30:07,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558808543] [2023-12-22 02:30:07,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:07,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:30:07,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:07,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:30:07,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:30:07,707 INFO L87 Difference]: Start difference. First operand 14115 states and 16867 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:09,313 INFO L93 Difference]: Finished difference Result 40055 states and 47837 transitions. [2023-12-22 02:30:09,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:30:09,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 137 [2023-12-22 02:30:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:09,357 INFO L225 Difference]: With dead ends: 40055 [2023-12-22 02:30:09,357 INFO L226 Difference]: Without dead ends: 25953 [2023-12-22 02:30:09,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:30:09,370 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 251 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:09,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 364 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:30:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25953 states. [2023-12-22 02:30:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25953 to 25951. [2023-12-22 02:30:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25951 states, 23122 states have (on average 1.195701063921806) internal successors, (27647), 23487 states have internal predecessors, (27647), 1268 states have call successors, (1268), 1024 states have call predecessors, (1268), 1560 states have return successors, (2008), 1440 states have call predecessors, (2008), 1268 states have call successors, (2008) [2023-12-22 02:30:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25951 states to 25951 states and 30923 transitions. [2023-12-22 02:30:10,832 INFO L78 Accepts]: Start accepts. Automaton has 25951 states and 30923 transitions. Word has length 137 [2023-12-22 02:30:10,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:10,832 INFO L495 AbstractCegarLoop]: Abstraction has 25951 states and 30923 transitions. [2023-12-22 02:30:10,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:30:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 25951 states and 30923 transitions. [2023-12-22 02:30:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:30:10,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:10,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:10,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:11,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:11,044 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:11,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:11,044 INFO L85 PathProgramCache]: Analyzing trace with hash 841317903, now seen corresponding path program 1 times [2023-12-22 02:30:11,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:11,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905211554] [2023-12-22 02:30:11,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:11,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:11,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:11,045 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:11,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 02:30:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:11,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:11,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:11,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:11,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:11,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905211554] [2023-12-22 02:30:11,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905211554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:11,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:11,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:30:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350141635] [2023-12-22 02:30:11,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:11,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:11,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:11,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:11,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:11,155 INFO L87 Difference]: Start difference. First operand 25951 states and 30923 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:30:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:13,860 INFO L93 Difference]: Finished difference Result 72073 states and 86223 transitions. [2023-12-22 02:30:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:13,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2023-12-22 02:30:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:13,937 INFO L225 Difference]: With dead ends: 72073 [2023-12-22 02:30:13,937 INFO L226 Difference]: Without dead ends: 36155 [2023-12-22 02:30:13,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:13,968 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 176 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:13,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 567 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:13,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36155 states. [2023-12-22 02:30:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36155 to 36155. [2023-12-22 02:30:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36155 states, 32202 states have (on average 1.1932178125582262) internal successors, (38424), 32677 states have internal predecessors, (38424), 1804 states have call successors, (1804), 1440 states have call predecessors, (1804), 2148 states have return successors, (2890), 2038 states have call predecessors, (2890), 1804 states have call successors, (2890) [2023-12-22 02:30:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36155 states to 36155 states and 43118 transitions. [2023-12-22 02:30:16,267 INFO L78 Accepts]: Start accepts. Automaton has 36155 states and 43118 transitions. Word has length 139 [2023-12-22 02:30:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:16,267 INFO L495 AbstractCegarLoop]: Abstraction has 36155 states and 43118 transitions. [2023-12-22 02:30:16,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:30:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 36155 states and 43118 transitions. [2023-12-22 02:30:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 02:30:16,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:16,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:16,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:16,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:16,500 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:16,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1840031205, now seen corresponding path program 1 times [2023-12-22 02:30:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:16,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026886282] [2023-12-22 02:30:16,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:16,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:16,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:16,505 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:16,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 02:30:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:16,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:16,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:16,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:16,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:16,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026886282] [2023-12-22 02:30:16,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026886282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:16,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:16,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:30:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497125915] [2023-12-22 02:30:16,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:16,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:16,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:16,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:16,771 INFO L87 Difference]: Start difference. First operand 36155 states and 43118 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-22 02:30:19,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:19,477 INFO L93 Difference]: Finished difference Result 82430 states and 98606 transitions. [2023-12-22 02:30:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:19,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 175 [2023-12-22 02:30:19,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:19,609 INFO L225 Difference]: With dead ends: 82430 [2023-12-22 02:30:19,610 INFO L226 Difference]: Without dead ends: 46287 [2023-12-22 02:30:19,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:19,670 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 101 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:19,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 382 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:30:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46287 states. [2023-12-22 02:30:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46287 to 46215. [2023-12-22 02:30:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46215 states, 41150 states have (on average 1.1846415552855407) internal successors, (48748), 41729 states have internal predecessors, (48748), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2724 states have return successors, (3682), 2630 states have call predecessors, (3682), 2340 states have call successors, (3682) [2023-12-22 02:30:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46215 states to 46215 states and 54770 transitions. [2023-12-22 02:30:22,910 INFO L78 Accepts]: Start accepts. Automaton has 46215 states and 54770 transitions. Word has length 175 [2023-12-22 02:30:22,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:22,910 INFO L495 AbstractCegarLoop]: Abstraction has 46215 states and 54770 transitions. [2023-12-22 02:30:22,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-22 02:30:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 46215 states and 54770 transitions. [2023-12-22 02:30:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-22 02:30:22,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:22,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 02:30:22,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:23,144 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:23,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1537270620, now seen corresponding path program 1 times [2023-12-22 02:30:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:23,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408354102] [2023-12-22 02:30:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:23,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:23,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:23,146 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:23,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-22 02:30:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:23,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:30:23,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-22 02:30:23,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:23,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:23,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408354102] [2023-12-22 02:30:23,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408354102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:23,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:23,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:30:23,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760096589] [2023-12-22 02:30:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:23,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:30:23,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:30:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:30:23,379 INFO L87 Difference]: Start difference. First operand 46215 states and 54770 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-22 02:30:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:26,139 INFO L93 Difference]: Finished difference Result 93083 states and 110539 transitions. [2023-12-22 02:30:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:30:26,140 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), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 199 [2023-12-22 02:30:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:26,233 INFO L225 Difference]: With dead ends: 93083 [2023-12-22 02:30:26,234 INFO L226 Difference]: Without dead ends: 46881 [2023-12-22 02:30:26,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:30:26,271 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 266 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:26,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 393 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:30:26,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46881 states. [2023-12-22 02:30:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46881 to 46881. [2023-12-22 02:30:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46881 states, 41744 states have (on average 1.177750095822154) internal successors, (49164), 42359 states have internal predecessors, (49164), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2796 states have return successors, (3460), 2666 states have call predecessors, (3460), 2340 states have call successors, (3460) [2023-12-22 02:30:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46881 states to 46881 states and 54964 transitions. [2023-12-22 02:30:29,470 INFO L78 Accepts]: Start accepts. Automaton has 46881 states and 54964 transitions. Word has length 199 [2023-12-22 02:30:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:29,471 INFO L495 AbstractCegarLoop]: Abstraction has 46881 states and 54964 transitions. [2023-12-22 02:30:29,471 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), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-22 02:30:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 46881 states and 54964 transitions. [2023-12-22 02:30:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-22 02:30:29,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:29,495 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:29,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-22 02:30:29,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:29,699 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:29,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:29,700 INFO L85 PathProgramCache]: Analyzing trace with hash 939859010, now seen corresponding path program 1 times [2023-12-22 02:30:29,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:29,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852363091] [2023-12-22 02:30:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:29,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:29,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:29,701 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:29,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 02:30:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:29,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:29,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:30:29,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:29,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852363091] [2023-12-22 02:30:29,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852363091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:29,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:29,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:30:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700192531] [2023-12-22 02:30:29,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:29,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:29,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:29,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:29,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:29,833 INFO L87 Difference]: Start difference. First operand 46881 states and 54964 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-22 02:30:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:32,617 INFO L93 Difference]: Finished difference Result 83729 states and 98402 transitions. [2023-12-22 02:30:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:32,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 200 [2023-12-22 02:30:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:32,700 INFO L225 Difference]: With dead ends: 83729 [2023-12-22 02:30:32,700 INFO L226 Difference]: Without dead ends: 46883 [2023-12-22 02:30:32,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:32,730 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 168 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:32,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 555 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46883 states. [2023-12-22 02:30:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46883 to 46881. [2023-12-22 02:30:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46881 states, 41744 states have (on average 1.1759773859716367) internal successors, (49090), 42359 states have internal predecessors, (49090), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2796 states have return successors, (3454), 2666 states have call predecessors, (3454), 2340 states have call successors, (3454) [2023-12-22 02:30:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46881 states to 46881 states and 54884 transitions. [2023-12-22 02:30:35,635 INFO L78 Accepts]: Start accepts. Automaton has 46881 states and 54884 transitions. Word has length 200 [2023-12-22 02:30:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:35,636 INFO L495 AbstractCegarLoop]: Abstraction has 46881 states and 54884 transitions. [2023-12-22 02:30:35,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-22 02:30:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 46881 states and 54884 transitions. [2023-12-22 02:30:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-22 02:30:35,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:35,662 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:35,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-22 02:30:35,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:35,867 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:35,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2092538923, now seen corresponding path program 1 times [2023-12-22 02:30:35,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:35,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636233659] [2023-12-22 02:30:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:35,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:35,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:35,869 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:35,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 02:30:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:35,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:35,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:30:36,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:36,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:36,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636233659] [2023-12-22 02:30:36,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636233659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:36,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:36,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:30:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820488159] [2023-12-22 02:30:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:36,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:36,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:36,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:36,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:36,118 INFO L87 Difference]: Start difference. First operand 46881 states and 54884 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-22 02:30:39,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:39,917 INFO L93 Difference]: Finished difference Result 102578 states and 120262 transitions. [2023-12-22 02:30:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:39,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 236 [2023-12-22 02:30:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:40,046 INFO L225 Difference]: With dead ends: 102578 [2023-12-22 02:30:40,046 INFO L226 Difference]: Without dead ends: 55709 [2023-12-22 02:30:40,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:40,090 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 83 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:40,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 381 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55709 states. [2023-12-22 02:30:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55709 to 55613. [2023-12-22 02:30:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55613 states, 49508 states have (on average 1.1684980205219357) internal successors, (57850), 50203 states have internal predecessors, (57850), 2828 states have call successors, (2828), 2224 states have call predecessors, (2828), 3276 states have return successors, (4102), 3186 states have call predecessors, (4102), 2828 states have call successors, (4102) [2023-12-22 02:30:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55613 states to 55613 states and 64780 transitions. [2023-12-22 02:30:43,858 INFO L78 Accepts]: Start accepts. Automaton has 55613 states and 64780 transitions. Word has length 236 [2023-12-22 02:30:43,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:43,858 INFO L495 AbstractCegarLoop]: Abstraction has 55613 states and 64780 transitions. [2023-12-22 02:30:43,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-22 02:30:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 55613 states and 64780 transitions. [2023-12-22 02:30:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 02:30:44,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:44,022 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:44,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-22 02:30:44,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:44,224 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:44,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1785862686, now seen corresponding path program 1 times [2023-12-22 02:30:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159590290] [2023-12-22 02:30:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:44,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:44,227 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:44,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 02:30:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:44,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:44,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-22 02:30:44,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:44,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:44,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159590290] [2023-12-22 02:30:44,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159590290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:44,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:44,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:30:44,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251982908] [2023-12-22 02:30:44,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:44,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:44,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:44,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:44,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:44,404 INFO L87 Difference]: Start difference. First operand 55613 states and 64780 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-22 02:30:47,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:47,935 INFO L93 Difference]: Finished difference Result 102483 states and 119648 transitions. [2023-12-22 02:30:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:47,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 239 [2023-12-22 02:30:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:48,078 INFO L225 Difference]: With dead ends: 102483 [2023-12-22 02:30:48,078 INFO L226 Difference]: Without dead ends: 55615 [2023-12-22 02:30:48,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:48,112 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 165 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:48,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 544 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:30:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55615 states. [2023-12-22 02:30:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55615 to 55613. [2023-12-22 02:30:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55613 states, 49508 states have (on average 1.166437747434758) internal successors, (57748), 50203 states have internal predecessors, (57748), 2828 states have call successors, (2828), 2224 states have call predecessors, (2828), 3276 states have return successors, (4084), 3186 states have call predecessors, (4084), 2828 states have call successors, (4084) [2023-12-22 02:30:51,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55613 states to 55613 states and 64660 transitions. [2023-12-22 02:30:51,971 INFO L78 Accepts]: Start accepts. Automaton has 55613 states and 64660 transitions. Word has length 239 [2023-12-22 02:30:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:30:51,971 INFO L495 AbstractCegarLoop]: Abstraction has 55613 states and 64660 transitions. [2023-12-22 02:30:51,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-22 02:30:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand 55613 states and 64660 transitions. [2023-12-22 02:30:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-22 02:30:52,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:30:52,005 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:30:52,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:30:52,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:52,209 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:30:52,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:30:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1695482647, now seen corresponding path program 1 times [2023-12-22 02:30:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:30:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115757919] [2023-12-22 02:30:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:30:52,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:30:52,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:30:52,212 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:30:52,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 02:30:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:30:52,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:30:52,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:30:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-12-22 02:30:52,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:30:52,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:30:52,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115757919] [2023-12-22 02:30:52,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115757919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:30:52,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:30:52,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:30:52,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665629416] [2023-12-22 02:30:52,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:30:52,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:30:52,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:30:52,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:30:52,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:52,481 INFO L87 Difference]: Start difference. First operand 55613 states and 64660 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:30:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:30:56,509 INFO L93 Difference]: Finished difference Result 118510 states and 137802 transitions. [2023-12-22 02:30:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:30:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 275 [2023-12-22 02:30:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:30:56,653 INFO L225 Difference]: With dead ends: 118510 [2023-12-22 02:30:56,653 INFO L226 Difference]: Without dead ends: 62909 [2023-12-22 02:30:56,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:30:56,698 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 71 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:30:56,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 381 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:30:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62909 states. [2023-12-22 02:31:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62909 to 62789. [2023-12-22 02:31:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62789 states, 55884 states have (on average 1.1607615775535036) internal successors, (64868), 56611 states have internal predecessors, (64868), 3268 states have call successors, (3268), 2544 states have call predecessors, (3268), 3636 states have return successors, (4588), 3634 states have call predecessors, (4588), 3268 states have call successors, (4588) [2023-12-22 02:31:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62789 states to 62789 states and 72724 transitions. [2023-12-22 02:31:01,127 INFO L78 Accepts]: Start accepts. Automaton has 62789 states and 72724 transitions. Word has length 275 [2023-12-22 02:31:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:01,128 INFO L495 AbstractCegarLoop]: Abstraction has 62789 states and 72724 transitions. [2023-12-22 02:31:01,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:31:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 62789 states and 72724 transitions. [2023-12-22 02:31:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 02:31:01,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:01,182 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:01,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2023-12-22 02:31:01,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:01,388 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:01,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash -294441318, now seen corresponding path program 1 times [2023-12-22 02:31:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:01,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101695209] [2023-12-22 02:31:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:01,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:01,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:01,390 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:01,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 02:31:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:01,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:01,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-22 02:31:01,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:01,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:01,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101695209] [2023-12-22 02:31:01,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101695209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:01,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:01,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786591548] [2023-12-22 02:31:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:01,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:01,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:01,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:01,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:01,560 INFO L87 Difference]: Start difference. First operand 62789 states and 72724 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-22 02:31:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:05,415 INFO L93 Difference]: Finished difference Result 118391 states and 137368 transitions. [2023-12-22 02:31:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 278 [2023-12-22 02:31:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:05,658 INFO L225 Difference]: With dead ends: 118391 [2023-12-22 02:31:05,658 INFO L226 Difference]: Without dead ends: 62791 [2023-12-22 02:31:05,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:05,711 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 162 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:05,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 537 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62791 states. [2023-12-22 02:31:10,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62791 to 62789. [2023-12-22 02:31:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62789 states, 55884 states have (on average 1.1583279650705032) internal successors, (64732), 56611 states have internal predecessors, (64732), 3268 states have call successors, (3268), 2544 states have call predecessors, (3268), 3636 states have return successors, (4540), 3634 states have call predecessors, (4540), 3268 states have call successors, (4540) [2023-12-22 02:31:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62789 states to 62789 states and 72540 transitions. [2023-12-22 02:31:10,139 INFO L78 Accepts]: Start accepts. Automaton has 62789 states and 72540 transitions. Word has length 278 [2023-12-22 02:31:10,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:10,139 INFO L495 AbstractCegarLoop]: Abstraction has 62789 states and 72540 transitions. [2023-12-22 02:31:10,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-22 02:31:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 62789 states and 72540 transitions. [2023-12-22 02:31:10,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 02:31:10,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:10,180 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:10,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:10,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:10,385 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:10,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash -704321331, now seen corresponding path program 1 times [2023-12-22 02:31:10,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:10,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951357397] [2023-12-22 02:31:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:10,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:10,387 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:10,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-22 02:31:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:10,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:31:10,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-22 02:31:10,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:10,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:10,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951357397] [2023-12-22 02:31:10,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951357397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:10,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:10,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:31:10,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271394780] [2023-12-22 02:31:10,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:10,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:31:10,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:10,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:31:10,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:10,555 INFO L87 Difference]: Start difference. First operand 62789 states and 72540 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:31:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:31:17,962 INFO L93 Difference]: Finished difference Result 171093 states and 202290 transitions. [2023-12-22 02:31:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:31:17,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 279 [2023-12-22 02:31:17,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:31:18,271 INFO L225 Difference]: With dead ends: 171093 [2023-12-22 02:31:18,272 INFO L226 Difference]: Without dead ends: 115493 [2023-12-22 02:31:18,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:31:18,329 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 190 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:31:18,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 388 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:31:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115493 states. [2023-12-22 02:31:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115493 to 112371. [2023-12-22 02:31:26,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112371 states, 99942 states have (on average 1.15256848972404) internal successors, (115190), 101315 states have internal predecessors, (115190), 5852 states have call successors, (5852), 4528 states have call predecessors, (5852), 6576 states have return successors, (10276), 6528 states have call predecessors, (10276), 5852 states have call successors, (10276) [2023-12-22 02:31:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112371 states to 112371 states and 131318 transitions. [2023-12-22 02:31:26,296 INFO L78 Accepts]: Start accepts. Automaton has 112371 states and 131318 transitions. Word has length 279 [2023-12-22 02:31:26,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:31:26,296 INFO L495 AbstractCegarLoop]: Abstraction has 112371 states and 131318 transitions. [2023-12-22 02:31:26,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:31:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 112371 states and 131318 transitions. [2023-12-22 02:31:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 02:31:26,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:31:26,389 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:31:26,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:31:26,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,591 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:31:26,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:31:26,591 INFO L85 PathProgramCache]: Analyzing trace with hash -993273710, now seen corresponding path program 1 times [2023-12-22 02:31:26,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:31:26,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704368177] [2023-12-22 02:31:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:31:26,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:31:26,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:31:26,593 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:31:26,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 02:31:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:31:26,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:31:26,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:31:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-22 02:31:26,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:31:26,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:31:26,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704368177] [2023-12-22 02:31:26,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704368177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:31:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:31:26,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:31:26,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956098095] [2023-12-22 02:31:26,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:31:26,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:31:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:31:26,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:31:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:31:26,972 INFO L87 Difference]: Start difference. First operand 112371 states and 131318 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)