/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:19:35,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:19:35,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:19:35,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:19:35,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:19:35,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:19:35,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:19:35,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:19:35,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:19:35,401 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:19:35,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:19:35,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:19:35,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:19:35,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:19:35,403 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:19:35,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:19:35,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:19:35,404 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:19:35,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:19:35,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:19:35,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:19:35,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:19:35,406 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:19:35,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:19:35,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:19:35,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:19:35,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:19:35,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:19:35,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:19:35,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:19:35,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:19:35,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:19:35,410 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:19:35,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:19:35,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:19:35,410 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:19:35,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:19:35,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:19:35,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:19:35,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:19:35,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:19:35,665 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:19:35,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-25 09:19:36,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:19:37,239 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:19:37,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-25 09:19:37,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccb0e29bb/d12306b75d504944b3fa79a5a99b3206/FLAGd0a3fe3b0 [2023-12-25 09:19:37,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccb0e29bb/d12306b75d504944b3fa79a5a99b3206 [2023-12-25 09:19:37,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:19:37,281 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:19:37,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:19:37,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:19:37,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:19:37,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:19:37" (1/1) ... [2023-12-25 09:19:37,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5184a54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:37, skipping insertion in model container [2023-12-25 09:19:37,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:19:37" (1/1) ... [2023-12-25 09:19:37,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:19:37,637 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-12-25 09:19:37,698 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-12-25 09:19:37,707 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-12-25 09:19:37,712 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-12-25 09:19:37,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:19:37,895 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:19:37,968 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-12-25 09:19:38,020 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-12-25 09:19:38,041 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-12-25 09:19:38,046 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-12-25 09:19:38,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:19:38,167 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:19:38,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38 WrapperNode [2023-12-25 09:19:38,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:19:38,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:19:38,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:19:38,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:19:38,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,281 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2831 [2023-12-25 09:19:38,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:19:38,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:19:38,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:19:38,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:19:38,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,363 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]. [2023-12-25 09:19:38,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:19:38,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:19:38,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:19:38,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:19:38,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (1/1) ... [2023-12-25 09:19:38,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:19:38,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:19:38,497 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) [2023-12-25 09:19:38,509 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 [2023-12-25 09:19:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:19:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:19:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:19:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:19:38,776 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:19:38,778 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:19:40,321 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:19:40,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:19:40,360 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:19:40,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:19:40 BoogieIcfgContainer [2023-12-25 09:19:40,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:19:40,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:19:40,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:19:40,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:19:40,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:19:37" (1/3) ... [2023-12-25 09:19:40,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d64f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:19:40, skipping insertion in model container [2023-12-25 09:19:40,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:19:38" (2/3) ... [2023-12-25 09:19:40,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d64f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:19:40, skipping insertion in model container [2023-12-25 09:19:40,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:19:40" (3/3) ... [2023-12-25 09:19:40,368 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-25 09:19:40,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:19:40,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-25 09:19:40,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:19:40,436 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;@436a972e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:19:40,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-25 09:19:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 09:19:40,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:40,459 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] [2023-12-25 09:19:40,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:40,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1875598250, now seen corresponding path program 1 times [2023-12-25 09:19:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:40,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629921710] [2023-12-25 09:19:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:40,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:40,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:40,481 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) [2023-12-25 09:19:40,487 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 [2023-12-25 09:19:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:40,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:40,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:41,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:41,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:41,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629921710] [2023-12-25 09:19:41,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629921710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:41,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:41,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:41,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130040576] [2023-12-25 09:19:41,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:41,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:41,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:41,116 INFO L87 Difference]: Start difference. First operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:41,779 INFO L93 Difference]: Finished difference Result 830 states and 1470 transitions. [2023-12-25 09:19:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-25 09:19:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:41,794 INFO L225 Difference]: With dead ends: 830 [2023-12-25 09:19:41,794 INFO L226 Difference]: Without dead ends: 485 [2023-12-25 09:19:41,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:41,802 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 2281 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:41,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 564 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:19:41,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-25 09:19:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2023-12-25 09:19:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 475 states have (on average 1.3663157894736842) internal successors, (649), 478 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 649 transitions. [2023-12-25 09:19:41,900 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 649 transitions. Word has length 50 [2023-12-25 09:19:41,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:41,900 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 649 transitions. [2023-12-25 09:19:41,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:41,901 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 649 transitions. [2023-12-25 09:19:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 09:19:41,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:41,903 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] [2023-12-25 09:19:41,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:42,112 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 [2023-12-25 09:19:42,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:42,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:42,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1300303287, now seen corresponding path program 1 times [2023-12-25 09:19:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:42,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793467193] [2023-12-25 09:19:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:42,116 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 [2023-12-25 09:19:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:42,117 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) [2023-12-25 09:19:42,120 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 [2023-12-25 09:19:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:42,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:42,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:42,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:42,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793467193] [2023-12-25 09:19:42,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793467193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:42,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:42,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:42,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052904527] [2023-12-25 09:19:42,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:42,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:42,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:42,505 INFO L87 Difference]: Start difference. First operand 479 states and 649 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:42,935 INFO L93 Difference]: Finished difference Result 976 states and 1364 transitions. [2023-12-25 09:19:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-25 09:19:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:42,938 INFO L225 Difference]: With dead ends: 976 [2023-12-25 09:19:42,939 INFO L226 Difference]: Without dead ends: 646 [2023-12-25 09:19:42,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:42,941 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1524 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:42,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 361 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:19:42,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-25 09:19:42,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 639. [2023-12-25 09:19:42,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 635 states have (on average 1.3874015748031496) internal successors, (881), 638 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 881 transitions. [2023-12-25 09:19:42,967 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 881 transitions. Word has length 51 [2023-12-25 09:19:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:42,967 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 881 transitions. [2023-12-25 09:19:42,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 881 transitions. [2023-12-25 09:19:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 09:19:42,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:42,970 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] [2023-12-25 09:19:42,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:43,192 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 [2023-12-25 09:19:43,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:43,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:43,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1156019405, now seen corresponding path program 1 times [2023-12-25 09:19:43,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:43,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023803878] [2023-12-25 09:19:43,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:43,195 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 [2023-12-25 09:19:43,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:43,198 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) [2023-12-25 09:19:43,206 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 [2023-12-25 09:19:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:43,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:43,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:43,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:43,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:43,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023803878] [2023-12-25 09:19:43,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023803878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:43,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:43,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:43,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8960231] [2023-12-25 09:19:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:43,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:43,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:43,446 INFO L87 Difference]: Start difference. First operand 639 states and 881 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:43,599 INFO L93 Difference]: Finished difference Result 1727 states and 2487 transitions. [2023-12-25 09:19:43,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:43,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-25 09:19:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:43,605 INFO L225 Difference]: With dead ends: 1727 [2023-12-25 09:19:43,605 INFO L226 Difference]: Without dead ends: 1229 [2023-12-25 09:19:43,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:43,607 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1211 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:43,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 906 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:19:43,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-12-25 09:19:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1220. [2023-12-25 09:19:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1216 states have (on average 1.435032894736842) internal successors, (1745), 1219 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1745 transitions. [2023-12-25 09:19:43,640 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1745 transitions. Word has length 51 [2023-12-25 09:19:43,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:43,640 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 1745 transitions. [2023-12-25 09:19:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1745 transitions. [2023-12-25 09:19:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 09:19:43,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:43,643 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] [2023-12-25 09:19:43,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:43,846 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 [2023-12-25 09:19:43,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:43,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1736182132, now seen corresponding path program 1 times [2023-12-25 09:19:43,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:43,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122216475] [2023-12-25 09:19:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:43,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:43,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:43,856 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) [2023-12-25 09:19:43,892 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 [2023-12-25 09:19:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:44,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:19:44,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:44,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:44,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:44,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:44,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122216475] [2023-12-25 09:19:44,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122216475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:44,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:19:44,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127991236] [2023-12-25 09:19:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:44,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:19:44,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:44,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:19:44,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:19:44,209 INFO L87 Difference]: Start difference. First operand 1220 states and 1745 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:44,579 INFO L93 Difference]: Finished difference Result 3120 states and 4556 transitions. [2023-12-25 09:19:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:19:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-25 09:19:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:44,588 INFO L225 Difference]: With dead ends: 3120 [2023-12-25 09:19:44,589 INFO L226 Difference]: Without dead ends: 2009 [2023-12-25 09:19:44,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:44,592 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 868 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:44,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 335 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:19:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2023-12-25 09:19:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2003. [2023-12-25 09:19:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1999 states have (on average 1.4577288644322162) internal successors, (2914), 2002 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2914 transitions. [2023-12-25 09:19:44,639 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2914 transitions. Word has length 51 [2023-12-25 09:19:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:44,639 INFO L495 AbstractCegarLoop]: Abstraction has 2003 states and 2914 transitions. [2023-12-25 09:19:44,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2914 transitions. [2023-12-25 09:19:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 09:19:44,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:44,641 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] [2023-12-25 09:19:44,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 09:19:44,844 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 [2023-12-25 09:19:44,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:44,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:44,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1616530195, now seen corresponding path program 1 times [2023-12-25 09:19:44,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:44,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186695474] [2023-12-25 09:19:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:44,847 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 [2023-12-25 09:19:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:44,848 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) [2023-12-25 09:19:44,850 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 [2023-12-25 09:19:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:44,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:44,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:45,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:45,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:45,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186695474] [2023-12-25 09:19:45,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186695474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:45,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:45,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:45,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339246861] [2023-12-25 09:19:45,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:45,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:45,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:45,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:45,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:45,034 INFO L87 Difference]: Start difference. First operand 2003 states and 2914 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:45,079 INFO L93 Difference]: Finished difference Result 3632 states and 5328 transitions. [2023-12-25 09:19:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:45,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-25 09:19:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:45,088 INFO L225 Difference]: With dead ends: 3632 [2023-12-25 09:19:45,089 INFO L226 Difference]: Without dead ends: 2488 [2023-12-25 09:19:45,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:45,091 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 224 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:45,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 687 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2023-12-25 09:19:45,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2457. [2023-12-25 09:19:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2453 states have (on average 1.4439461883408071) internal successors, (3542), 2456 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 3542 transitions. [2023-12-25 09:19:45,147 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 3542 transitions. Word has length 52 [2023-12-25 09:19:45,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:45,148 INFO L495 AbstractCegarLoop]: Abstraction has 2457 states and 3542 transitions. [2023-12-25 09:19:45,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 3542 transitions. [2023-12-25 09:19:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 09:19:45,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:45,150 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] [2023-12-25 09:19:45,158 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 [2023-12-25 09:19:45,358 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 [2023-12-25 09:19:45,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:45,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1258176505, now seen corresponding path program 1 times [2023-12-25 09:19:45,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:45,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250939165] [2023-12-25 09:19:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:45,361 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 [2023-12-25 09:19:45,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:45,362 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) [2023-12-25 09:19:45,363 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 [2023-12-25 09:19:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:45,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:19:45,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:45,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:45,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:45,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250939165] [2023-12-25 09:19:45,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250939165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697260426] [2023-12-25 09:19:45,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:45,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:19:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:45,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:19:45,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:45,624 INFO L87 Difference]: Start difference. First operand 2457 states and 3542 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:46,050 INFO L93 Difference]: Finished difference Result 9348 states and 13625 transitions. [2023-12-25 09:19:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:19:46,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-25 09:19:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:46,076 INFO L225 Difference]: With dead ends: 9348 [2023-12-25 09:19:46,076 INFO L226 Difference]: Without dead ends: 7118 [2023-12-25 09:19:46,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:19:46,083 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 1319 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:46,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 613 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:19:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7118 states. [2023-12-25 09:19:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7118 to 2449. [2023-12-25 09:19:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2445 states have (on average 1.4323108384458079) internal successors, (3502), 2448 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3502 transitions. [2023-12-25 09:19:46,256 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3502 transitions. Word has length 52 [2023-12-25 09:19:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:46,256 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3502 transitions. [2023-12-25 09:19:46,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3502 transitions. [2023-12-25 09:19:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 09:19:46,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:46,258 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] [2023-12-25 09:19:46,263 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 [2023-12-25 09:19:46,462 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 [2023-12-25 09:19:46,463 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:46,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash -976978975, now seen corresponding path program 1 times [2023-12-25 09:19:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:46,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911673195] [2023-12-25 09:19:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:46,464 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 [2023-12-25 09:19:46,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:46,465 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) [2023-12-25 09:19:46,466 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 [2023-12-25 09:19:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:46,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:46,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:46,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:46,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:46,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911673195] [2023-12-25 09:19:46,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911673195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:46,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599275178] [2023-12-25 09:19:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:46,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:46,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:46,647 INFO L87 Difference]: Start difference. First operand 2449 states and 3502 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:46,692 INFO L93 Difference]: Finished difference Result 4994 states and 7152 transitions. [2023-12-25 09:19:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-25 09:19:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:46,704 INFO L225 Difference]: With dead ends: 4994 [2023-12-25 09:19:46,705 INFO L226 Difference]: Without dead ends: 3349 [2023-12-25 09:19:46,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:46,709 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 228 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:46,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 802 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2023-12-25 09:19:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3326. [2023-12-25 09:19:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3326 states, 3322 states have (on average 1.403371462974112) internal successors, (4662), 3325 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 4662 transitions. [2023-12-25 09:19:46,773 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 4662 transitions. Word has length 52 [2023-12-25 09:19:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:46,773 INFO L495 AbstractCegarLoop]: Abstraction has 3326 states and 4662 transitions. [2023-12-25 09:19:46,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 4662 transitions. [2023-12-25 09:19:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 09:19:46,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:46,775 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] [2023-12-25 09:19:46,782 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 [2023-12-25 09:19:46,979 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 [2023-12-25 09:19:46,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:46,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:46,980 INFO L85 PathProgramCache]: Analyzing trace with hash 921721697, now seen corresponding path program 1 times [2023-12-25 09:19:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:46,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362297550] [2023-12-25 09:19:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:46,981 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 [2023-12-25 09:19:46,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:46,982 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) [2023-12-25 09:19:46,984 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 [2023-12-25 09:19:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:47,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:19:47,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:47,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:47,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:47,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362297550] [2023-12-25 09:19:47,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362297550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:47,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:47,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203010999] [2023-12-25 09:19:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:47,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:19:47,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:19:47,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:47,267 INFO L87 Difference]: Start difference. First operand 3326 states and 4662 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:47,724 INFO L93 Difference]: Finished difference Result 16063 states and 22764 transitions. [2023-12-25 09:19:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:19:47,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-25 09:19:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:47,781 INFO L225 Difference]: With dead ends: 16063 [2023-12-25 09:19:47,781 INFO L226 Difference]: Without dead ends: 13633 [2023-12-25 09:19:47,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:19:47,793 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1488 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:47,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 666 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:19:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13633 states. [2023-12-25 09:19:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13633 to 3321. [2023-12-25 09:19:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 3317 states have (on average 1.379559843231836) internal successors, (4576), 3320 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 4576 transitions. [2023-12-25 09:19:47,984 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 4576 transitions. Word has length 52 [2023-12-25 09:19:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:47,985 INFO L495 AbstractCegarLoop]: Abstraction has 3321 states and 4576 transitions. [2023-12-25 09:19:47,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 4576 transitions. [2023-12-25 09:19:47,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 09:19:47,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:47,987 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] [2023-12-25 09:19:47,992 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 [2023-12-25 09:19:48,192 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 [2023-12-25 09:19:48,192 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:48,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1113959936, now seen corresponding path program 1 times [2023-12-25 09:19:48,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:48,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793615139] [2023-12-25 09:19:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:48,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:48,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:48,195 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) [2023-12-25 09:19:48,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 09:19:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:48,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:48,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:48,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:48,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:48,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793615139] [2023-12-25 09:19:48,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793615139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:48,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:48,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:48,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339221319] [2023-12-25 09:19:48,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:48,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:48,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:48,374 INFO L87 Difference]: Start difference. First operand 3321 states and 4576 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:48,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:48,422 INFO L93 Difference]: Finished difference Result 4882 states and 6720 transitions. [2023-12-25 09:19:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:48,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-25 09:19:48,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:48,429 INFO L225 Difference]: With dead ends: 4882 [2023-12-25 09:19:48,429 INFO L226 Difference]: Without dead ends: 3446 [2023-12-25 09:19:48,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:48,433 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 208 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:48,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 711 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:48,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2023-12-25 09:19:48,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3145. [2023-12-25 09:19:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3141 states have (on average 1.347023241006049) internal successors, (4231), 3144 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4231 transitions. [2023-12-25 09:19:48,490 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4231 transitions. Word has length 53 [2023-12-25 09:19:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:48,490 INFO L495 AbstractCegarLoop]: Abstraction has 3145 states and 4231 transitions. [2023-12-25 09:19:48,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4231 transitions. [2023-12-25 09:19:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 09:19:48,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:48,493 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] [2023-12-25 09:19:48,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:48,697 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 [2023-12-25 09:19:48,697 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:48,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319552, now seen corresponding path program 1 times [2023-12-25 09:19:48,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:48,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440466799] [2023-12-25 09:19:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:48,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:48,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:48,700 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) [2023-12-25 09:19:48,701 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 [2023-12-25 09:19:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:48,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:19:48,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:49,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:49,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440466799] [2023-12-25 09:19:49,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440466799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:49,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:49,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:19:49,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447049547] [2023-12-25 09:19:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:49,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:19:49,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:19:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:19:49,279 INFO L87 Difference]: Start difference. First operand 3145 states and 4231 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:50,577 INFO L93 Difference]: Finished difference Result 7070 states and 9717 transitions. [2023-12-25 09:19:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:19:50,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-25 09:19:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:50,589 INFO L225 Difference]: With dead ends: 7070 [2023-12-25 09:19:50,589 INFO L226 Difference]: Without dead ends: 5101 [2023-12-25 09:19:50,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:19:50,595 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1704 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:50,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 1068 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 09:19:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2023-12-25 09:19:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 3122. [2023-12-25 09:19:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3118 states have (on average 1.3470173187940988) internal successors, (4200), 3121 states have internal predecessors, (4200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 4200 transitions. [2023-12-25 09:19:50,660 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 4200 transitions. Word has length 53 [2023-12-25 09:19:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:50,660 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 4200 transitions. [2023-12-25 09:19:50,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 4200 transitions. [2023-12-25 09:19:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 09:19:50,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:50,663 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] [2023-12-25 09:19:50,672 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 [2023-12-25 09:19:50,868 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 [2023-12-25 09:19:50,869 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:50,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1007743463, now seen corresponding path program 1 times [2023-12-25 09:19:50,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:50,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722104715] [2023-12-25 09:19:50,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:50,870 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 [2023-12-25 09:19:50,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:50,872 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) [2023-12-25 09:19:50,873 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 [2023-12-25 09:19:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:51,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:19:51,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:51,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:51,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:51,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722104715] [2023-12-25 09:19:51,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722104715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:51,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:51,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:19:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192640081] [2023-12-25 09:19:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:51,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:19:51,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:19:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:19:51,293 INFO L87 Difference]: Start difference. First operand 3122 states and 4200 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:52,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:52,130 INFO L93 Difference]: Finished difference Result 4099 states and 5537 transitions. [2023-12-25 09:19:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:19:52,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 09:19:52,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:52,136 INFO L225 Difference]: With dead ends: 4099 [2023-12-25 09:19:52,136 INFO L226 Difference]: Without dead ends: 3343 [2023-12-25 09:19:52,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 09:19:52,138 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1161 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:52,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 797 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:19:52,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2023-12-25 09:19:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3035. [2023-12-25 09:19:52,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3031 states have (on average 1.347410095677994) internal successors, (4084), 3034 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4084 transitions. [2023-12-25 09:19:52,189 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4084 transitions. Word has length 54 [2023-12-25 09:19:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:52,190 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 4084 transitions. [2023-12-25 09:19:52,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4084 transitions. [2023-12-25 09:19:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 09:19:52,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:52,192 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] [2023-12-25 09:19:52,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:19:52,396 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 [2023-12-25 09:19:52,396 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:52,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2094955992, now seen corresponding path program 1 times [2023-12-25 09:19:52,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962994616] [2023-12-25 09:19:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:52,397 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 [2023-12-25 09:19:52,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:52,398 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) [2023-12-25 09:19:52,400 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 [2023-12-25 09:19:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:52,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:19:52,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:52,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:52,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:52,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962994616] [2023-12-25 09:19:52,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962994616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:52,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:52,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:19:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548470783] [2023-12-25 09:19:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:52,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:19:52,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:19:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:19:52,918 INFO L87 Difference]: Start difference. First operand 3035 states and 4084 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:53,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:53,942 INFO L93 Difference]: Finished difference Result 3601 states and 4865 transitions. [2023-12-25 09:19:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:19:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 09:19:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:53,948 INFO L225 Difference]: With dead ends: 3601 [2023-12-25 09:19:53,948 INFO L226 Difference]: Without dead ends: 3596 [2023-12-25 09:19:53,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:19:53,949 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1265 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:53,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1114 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:19:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2023-12-25 09:19:53,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3035. [2023-12-25 09:19:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3031 states have (on average 1.3467502474430881) internal successors, (4082), 3034 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4082 transitions. [2023-12-25 09:19:53,992 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4082 transitions. Word has length 54 [2023-12-25 09:19:53,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:53,992 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 4082 transitions. [2023-12-25 09:19:53,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4082 transitions. [2023-12-25 09:19:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 09:19:53,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:53,994 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] [2023-12-25 09:19:54,000 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 [2023-12-25 09:19:54,197 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 [2023-12-25 09:19:54,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:54,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:54,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1992689280, now seen corresponding path program 1 times [2023-12-25 09:19:54,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:54,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292922353] [2023-12-25 09:19:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:54,200 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) [2023-12-25 09:19:54,202 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 [2023-12-25 09:19:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:54,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:19:54,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:54,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:54,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:54,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292922353] [2023-12-25 09:19:54,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292922353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:54,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:54,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:19:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868722127] [2023-12-25 09:19:54,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:54,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:19:54,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:54,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:19:54,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:19:54,494 INFO L87 Difference]: Start difference. First operand 3035 states and 4082 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:54,832 INFO L93 Difference]: Finished difference Result 11215 states and 15363 transitions. [2023-12-25 09:19:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:19:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 09:19:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:54,847 INFO L225 Difference]: With dead ends: 11215 [2023-12-25 09:19:54,848 INFO L226 Difference]: Without dead ends: 9375 [2023-12-25 09:19:54,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:19:54,854 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 987 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:54,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 782 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:19:54,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9375 states. [2023-12-25 09:19:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9375 to 3037. [2023-12-25 09:19:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3033 states have (on average 1.3369601055060996) internal successors, (4055), 3036 states have internal predecessors, (4055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4055 transitions. [2023-12-25 09:19:54,936 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4055 transitions. Word has length 54 [2023-12-25 09:19:54,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:54,936 INFO L495 AbstractCegarLoop]: Abstraction has 3037 states and 4055 transitions. [2023-12-25 09:19:54,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4055 transitions. [2023-12-25 09:19:54,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 09:19:54,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:54,938 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] [2023-12-25 09:19:54,947 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 [2023-12-25 09:19:55,147 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 [2023-12-25 09:19:55,147 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:55,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash -171324051, now seen corresponding path program 1 times [2023-12-25 09:19:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:55,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544250514] [2023-12-25 09:19:55,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:55,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:19:55,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:55,150 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) [2023-12-25 09:19:55,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 09:19:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:55,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:55,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:55,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:55,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544250514] [2023-12-25 09:19:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544250514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:55,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:55,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891940043] [2023-12-25 09:19:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:55,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:55,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:55,324 INFO L87 Difference]: Start difference. First operand 3037 states and 4055 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:55,354 INFO L93 Difference]: Finished difference Result 3652 states and 4876 transitions. [2023-12-25 09:19:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:55,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-25 09:19:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:55,358 INFO L225 Difference]: With dead ends: 3652 [2023-12-25 09:19:55,358 INFO L226 Difference]: Without dead ends: 2834 [2023-12-25 09:19:55,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:55,360 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 231 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:55,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 725 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2023-12-25 09:19:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2828. [2023-12-25 09:19:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 2824 states have (on average 1.3247167138810199) internal successors, (3741), 2827 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3741 transitions. [2023-12-25 09:19:55,417 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3741 transitions. Word has length 55 [2023-12-25 09:19:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:55,418 INFO L495 AbstractCegarLoop]: Abstraction has 2828 states and 3741 transitions. [2023-12-25 09:19:55,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3741 transitions. [2023-12-25 09:19:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 09:19:55,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:55,420 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] [2023-12-25 09:19:55,426 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 [2023-12-25 09:19:55,623 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 [2023-12-25 09:19:55,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:55,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:55,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1692855010, now seen corresponding path program 1 times [2023-12-25 09:19:55,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:55,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550082824] [2023-12-25 09:19:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:55,624 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 [2023-12-25 09:19:55,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:55,625 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) [2023-12-25 09:19:55,626 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 [2023-12-25 09:19:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:55,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:55,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:55,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:55,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:55,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550082824] [2023-12-25 09:19:55,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550082824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:55,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:55,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:55,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106188855] [2023-12-25 09:19:55,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:55,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:55,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:55,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:55,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:55,774 INFO L87 Difference]: Start difference. First operand 2828 states and 3741 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:55,807 INFO L93 Difference]: Finished difference Result 3443 states and 4546 transitions. [2023-12-25 09:19:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:55,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-25 09:19:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:55,810 INFO L225 Difference]: With dead ends: 3443 [2023-12-25 09:19:55,810 INFO L226 Difference]: Without dead ends: 2307 [2023-12-25 09:19:55,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:55,812 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 251 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:55,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 646 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:19:55,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2023-12-25 09:19:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2301. [2023-12-25 09:19:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2297 states have (on average 1.2899434044405746) internal successors, (2963), 2300 states have internal predecessors, (2963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 2963 transitions. [2023-12-25 09:19:55,842 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 2963 transitions. Word has length 55 [2023-12-25 09:19:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:55,843 INFO L495 AbstractCegarLoop]: Abstraction has 2301 states and 2963 transitions. [2023-12-25 09:19:55,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 2963 transitions. [2023-12-25 09:19:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 09:19:55,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:55,845 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] [2023-12-25 09:19:55,849 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 [2023-12-25 09:19:56,049 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 [2023-12-25 09:19:56,050 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:56,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622388, now seen corresponding path program 1 times [2023-12-25 09:19:56,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:56,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803589203] [2023-12-25 09:19:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:56,051 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 [2023-12-25 09:19:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:56,052 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) [2023-12-25 09:19:56,055 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 [2023-12-25 09:19:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:56,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:19:56,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:56,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:56,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:56,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803589203] [2023-12-25 09:19:56,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803589203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:56,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:56,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:19:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054979598] [2023-12-25 09:19:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:56,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:19:56,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:19:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:56,216 INFO L87 Difference]: Start difference. First operand 2301 states and 2963 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:56,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:56,284 INFO L93 Difference]: Finished difference Result 3407 states and 4425 transitions. [2023-12-25 09:19:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:19:56,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-25 09:19:56,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:56,287 INFO L225 Difference]: With dead ends: 3407 [2023-12-25 09:19:56,287 INFO L226 Difference]: Without dead ends: 2695 [2023-12-25 09:19:56,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:19:56,289 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 290 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:56,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 484 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:19:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2023-12-25 09:19:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2132. [2023-12-25 09:19:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 2128 states have (on average 1.2965225563909775) internal successors, (2759), 2131 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2759 transitions. [2023-12-25 09:19:56,314 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2759 transitions. Word has length 56 [2023-12-25 09:19:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:56,314 INFO L495 AbstractCegarLoop]: Abstraction has 2132 states and 2759 transitions. [2023-12-25 09:19:56,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2759 transitions. [2023-12-25 09:19:56,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 09:19:56,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:56,316 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] [2023-12-25 09:19:56,320 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 [2023-12-25 09:19:56,519 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 [2023-12-25 09:19:56,519 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:56,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:56,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1344491359, now seen corresponding path program 1 times [2023-12-25 09:19:56,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:56,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152473084] [2023-12-25 09:19:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:56,520 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 [2023-12-25 09:19:56,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:56,521 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) [2023-12-25 09:19:56,522 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 [2023-12-25 09:19:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:19:56,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 09:19:56,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:19:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:19:58,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:19:58,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:19:58,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152473084] [2023-12-25 09:19:58,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152473084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:19:58,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:19:58,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-25 09:19:58,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566086289] [2023-12-25 09:19:58,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:19:58,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 09:19:58,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:19:58,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 09:19:58,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:19:58,076 INFO L87 Difference]: Start difference. First operand 2132 states and 2759 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:19:59,711 INFO L93 Difference]: Finished difference Result 4462 states and 5853 transitions. [2023-12-25 09:19:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:19:59,712 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-25 09:19:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:19:59,714 INFO L225 Difference]: With dead ends: 4462 [2023-12-25 09:19:59,714 INFO L226 Difference]: Without dead ends: 2623 [2023-12-25 09:19:59,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:19:59,717 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1354 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:19:59,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 2177 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:19:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2023-12-25 09:19:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2316. [2023-12-25 09:19:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 2314 states have (on average 1.315038893690579) internal successors, (3043), 2315 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3043 transitions. [2023-12-25 09:19:59,747 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3043 transitions. Word has length 57 [2023-12-25 09:19:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:19:59,747 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 3043 transitions. [2023-12-25 09:19:59,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:19:59,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3043 transitions. [2023-12-25 09:19:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 09:19:59,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:19:59,749 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] [2023-12-25 09:19:59,756 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 [2023-12-25 09:19:59,953 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 [2023-12-25 09:19:59,953 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:19:59,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:19:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1565233070, now seen corresponding path program 1 times [2023-12-25 09:19:59,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:19:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964506698] [2023-12-25 09:19:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:19:59,954 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 [2023-12-25 09:19:59,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:19:59,956 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) [2023-12-25 09:19:59,957 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 [2023-12-25 09:20:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:00,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 09:20:00,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:01,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:01,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:01,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964506698] [2023-12-25 09:20:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964506698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:01,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:01,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-25 09:20:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324132294] [2023-12-25 09:20:01,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:01,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:20:01,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:01,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:20:01,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:20:01,474 INFO L87 Difference]: Start difference. First operand 2316 states and 3043 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:03,008 INFO L93 Difference]: Finished difference Result 2731 states and 3585 transitions. [2023-12-25 09:20:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 09:20:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-25 09:20:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:03,011 INFO L225 Difference]: With dead ends: 2731 [2023-12-25 09:20:03,011 INFO L226 Difference]: Without dead ends: 2609 [2023-12-25 09:20:03,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:20:03,012 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1162 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:03,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2195 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:20:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2023-12-25 09:20:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2302. [2023-12-25 09:20:03,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.3150803998261624) internal successors, (3026), 2301 states have internal predecessors, (3026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3026 transitions. [2023-12-25 09:20:03,036 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3026 transitions. Word has length 58 [2023-12-25 09:20:03,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:03,036 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 3026 transitions. [2023-12-25 09:20:03,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:03,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3026 transitions. [2023-12-25 09:20:03,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:20:03,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:03,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:03,044 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 [2023-12-25 09:20:03,243 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 [2023-12-25 09:20:03,244 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:03,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash -157229735, now seen corresponding path program 1 times [2023-12-25 09:20:03,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:03,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455735521] [2023-12-25 09:20:03,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:03,245 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 [2023-12-25 09:20:03,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:03,246 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) [2023-12-25 09:20:03,249 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 [2023-12-25 09:20:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:03,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:03,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:03,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:03,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455735521] [2023-12-25 09:20:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455735521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:03,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:03,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:20:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74450755] [2023-12-25 09:20:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:03,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:20:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:20:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:03,709 INFO L87 Difference]: Start difference. First operand 2302 states and 3026 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:04,606 INFO L93 Difference]: Finished difference Result 3620 states and 4801 transitions. [2023-12-25 09:20:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:20:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:20:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:04,609 INFO L225 Difference]: With dead ends: 3620 [2023-12-25 09:20:04,609 INFO L226 Difference]: Without dead ends: 2313 [2023-12-25 09:20:04,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:20:04,610 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1237 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:04,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 879 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:20:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2023-12-25 09:20:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2124. [2023-12-25 09:20:04,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2123 states have (on average 1.3151201130475743) internal successors, (2792), 2123 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:04,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2792 transitions. [2023-12-25 09:20:04,630 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2792 transitions. Word has length 68 [2023-12-25 09:20:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:04,630 INFO L495 AbstractCegarLoop]: Abstraction has 2124 states and 2792 transitions. [2023-12-25 09:20:04,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2792 transitions. [2023-12-25 09:20:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:20:04,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:04,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:04,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:04,836 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 [2023-12-25 09:20:04,836 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:04,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1826102221, now seen corresponding path program 1 times [2023-12-25 09:20:04,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:04,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203592517] [2023-12-25 09:20:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:04,837 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 [2023-12-25 09:20:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:04,838 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) [2023-12-25 09:20:04,841 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 [2023-12-25 09:20:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:04,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:04,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:05,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:05,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:05,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203592517] [2023-12-25 09:20:05,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203592517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:05,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:20:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758563205] [2023-12-25 09:20:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:05,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:20:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:20:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:05,279 INFO L87 Difference]: Start difference. First operand 2124 states and 2792 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:06,096 INFO L93 Difference]: Finished difference Result 3155 states and 4176 transitions. [2023-12-25 09:20:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:20:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:06,099 INFO L225 Difference]: With dead ends: 3155 [2023-12-25 09:20:06,099 INFO L226 Difference]: Without dead ends: 2378 [2023-12-25 09:20:06,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:20:06,100 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 997 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:06,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1096 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:20:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2023-12-25 09:20:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2088. [2023-12-25 09:20:06,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2087 states have (on average 1.3148059415428845) internal successors, (2744), 2087 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2744 transitions. [2023-12-25 09:20:06,119 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2744 transitions. Word has length 68 [2023-12-25 09:20:06,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:06,119 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 2744 transitions. [2023-12-25 09:20:06,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2744 transitions. [2023-12-25 09:20:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:20:06,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:06,122 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] [2023-12-25 09:20:06,126 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 [2023-12-25 09:20:06,326 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 [2023-12-25 09:20:06,326 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:06,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:06,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1503129188, now seen corresponding path program 1 times [2023-12-25 09:20:06,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:06,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491723361] [2023-12-25 09:20:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:06,328 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 [2023-12-25 09:20:06,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:06,329 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) [2023-12-25 09:20:06,362 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 [2023-12-25 09:20:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:06,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:06,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:06,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:06,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491723361] [2023-12-25 09:20:06,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491723361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:06,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:06,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023933715] [2023-12-25 09:20:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:06,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:06,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:06,550 INFO L87 Difference]: Start difference. First operand 2088 states and 2744 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:06,584 INFO L93 Difference]: Finished difference Result 4921 states and 6616 transitions. [2023-12-25 09:20:06,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:20:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:06,588 INFO L225 Difference]: With dead ends: 4921 [2023-12-25 09:20:06,588 INFO L226 Difference]: Without dead ends: 3246 [2023-12-25 09:20:06,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:06,591 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 148 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:06,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 451 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:06,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2023-12-25 09:20:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3244. [2023-12-25 09:20:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 3243 states have (on average 1.3203823620104842) internal successors, (4282), 3243 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4282 transitions. [2023-12-25 09:20:06,657 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 4282 transitions. Word has length 69 [2023-12-25 09:20:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:06,657 INFO L495 AbstractCegarLoop]: Abstraction has 3244 states and 4282 transitions. [2023-12-25 09:20:06,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 4282 transitions. [2023-12-25 09:20:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 09:20:06,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:06,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:06,680 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 [2023-12-25 09:20:06,883 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 [2023-12-25 09:20:06,883 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:06,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1098022311, now seen corresponding path program 1 times [2023-12-25 09:20:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048170733] [2023-12-25 09:20:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:06,885 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 [2023-12-25 09:20:06,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:06,886 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) [2023-12-25 09:20:06,919 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 [2023-12-25 09:20:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:07,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:07,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:07,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:07,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048170733] [2023-12-25 09:20:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048170733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:07,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:07,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:07,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31974517] [2023-12-25 09:20:07,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:07,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:07,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:07,067 INFO L87 Difference]: Start difference. First operand 3244 states and 4282 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:07,101 INFO L93 Difference]: Finished difference Result 8182 states and 11024 transitions. [2023-12-25 09:20:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:07,104 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-25 09:20:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:07,110 INFO L225 Difference]: With dead ends: 8182 [2023-12-25 09:20:07,111 INFO L226 Difference]: Without dead ends: 5364 [2023-12-25 09:20:07,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:07,115 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 141 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:07,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 457 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:07,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2023-12-25 09:20:07,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 5362. [2023-12-25 09:20:07,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 5361 states have (on average 1.3294161537026674) internal successors, (7127), 5361 states have internal predecessors, (7127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 7127 transitions. [2023-12-25 09:20:07,165 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 7127 transitions. Word has length 70 [2023-12-25 09:20:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:07,166 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 7127 transitions. [2023-12-25 09:20:07,166 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 7127 transitions. [2023-12-25 09:20:07,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:20:07,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:07,168 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] [2023-12-25 09:20:07,172 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 [2023-12-25 09:20:07,371 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 [2023-12-25 09:20:07,372 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:07,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1455858117, now seen corresponding path program 1 times [2023-12-25 09:20:07,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604630602] [2023-12-25 09:20:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:07,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:07,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:07,374 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) [2023-12-25 09:20:07,375 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 [2023-12-25 09:20:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:07,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:07,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:07,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:07,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:07,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604630602] [2023-12-25 09:20:07,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604630602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:07,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:07,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:07,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420358690] [2023-12-25 09:20:07,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:07,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:07,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:07,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:07,527 INFO L87 Difference]: Start difference. First operand 5362 states and 7127 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:07,577 INFO L93 Difference]: Finished difference Result 13834 states and 18657 transitions. [2023-12-25 09:20:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:07,577 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-25 09:20:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:07,585 INFO L225 Difference]: With dead ends: 13834 [2023-12-25 09:20:07,585 INFO L226 Difference]: Without dead ends: 8898 [2023-12-25 09:20:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:07,590 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 136 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:07,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 437 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8898 states. [2023-12-25 09:20:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8898 to 8896. [2023-12-25 09:20:07,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8896 states, 8895 states have (on average 1.3309724564362002) internal successors, (11839), 8895 states have internal predecessors, (11839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8896 states to 8896 states and 11839 transitions. [2023-12-25 09:20:07,675 INFO L78 Accepts]: Start accepts. Automaton has 8896 states and 11839 transitions. Word has length 71 [2023-12-25 09:20:07,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:07,675 INFO L495 AbstractCegarLoop]: Abstraction has 8896 states and 11839 transitions. [2023-12-25 09:20:07,675 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8896 states and 11839 transitions. [2023-12-25 09:20:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 09:20:07,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:07,677 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] [2023-12-25 09:20:07,687 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 [2023-12-25 09:20:07,880 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 [2023-12-25 09:20:07,881 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:07,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1416844630, now seen corresponding path program 1 times [2023-12-25 09:20:07,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:07,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193753234] [2023-12-25 09:20:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:07,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:07,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:07,883 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) [2023-12-25 09:20:07,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 09:20:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:08,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:08,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:08,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:08,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:08,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193753234] [2023-12-25 09:20:08,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193753234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:08,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:08,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:08,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629291793] [2023-12-25 09:20:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:08,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:08,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:08,350 INFO L87 Difference]: Start difference. First operand 8896 states and 11839 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:08,450 INFO L93 Difference]: Finished difference Result 28689 states and 38418 transitions. [2023-12-25 09:20:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-25 09:20:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:08,471 INFO L225 Difference]: With dead ends: 28689 [2023-12-25 09:20:08,471 INFO L226 Difference]: Without dead ends: 20663 [2023-12-25 09:20:08,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:08,483 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 508 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:08,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 558 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:08,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20663 states. [2023-12-25 09:20:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20663 to 16993. [2023-12-25 09:20:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16993 states, 16992 states have (on average 1.3019067796610169) internal successors, (22122), 16992 states have internal predecessors, (22122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16993 states to 16993 states and 22122 transitions. [2023-12-25 09:20:08,676 INFO L78 Accepts]: Start accepts. Automaton has 16993 states and 22122 transitions. Word has length 74 [2023-12-25 09:20:08,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:08,676 INFO L495 AbstractCegarLoop]: Abstraction has 16993 states and 22122 transitions. [2023-12-25 09:20:08,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 16993 states and 22122 transitions. [2023-12-25 09:20:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 09:20:08,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:08,679 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] [2023-12-25 09:20:08,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:08,882 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 [2023-12-25 09:20:08,882 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:08,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash 543519788, now seen corresponding path program 1 times [2023-12-25 09:20:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:08,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361237875] [2023-12-25 09:20:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:08,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:08,884 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) [2023-12-25 09:20:08,886 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 [2023-12-25 09:20:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:09,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:20:09,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:09,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:09,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:09,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361237875] [2023-12-25 09:20:09,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361237875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:09,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:09,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:09,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078161631] [2023-12-25 09:20:09,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:09,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:09,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:09,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:09,051 INFO L87 Difference]: Start difference. First operand 16993 states and 22122 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:09,218 INFO L93 Difference]: Finished difference Result 36484 states and 46794 transitions. [2023-12-25 09:20:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:20:09,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-25 09:20:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:09,273 INFO L225 Difference]: With dead ends: 36484 [2023-12-25 09:20:09,274 INFO L226 Difference]: Without dead ends: 36482 [2023-12-25 09:20:09,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:09,288 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 338 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:09,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 933 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36482 states. [2023-12-25 09:20:09,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36482 to 18769. [2023-12-25 09:20:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18769 states, 18768 states have (on average 1.2733375959079285) internal successors, (23898), 18768 states have internal predecessors, (23898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:09,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18769 states to 18769 states and 23898 transitions. [2023-12-25 09:20:09,699 INFO L78 Accepts]: Start accepts. Automaton has 18769 states and 23898 transitions. Word has length 75 [2023-12-25 09:20:09,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:09,700 INFO L495 AbstractCegarLoop]: Abstraction has 18769 states and 23898 transitions. [2023-12-25 09:20:09,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 18769 states and 23898 transitions. [2023-12-25 09:20:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 09:20:09,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:09,702 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] [2023-12-25 09:20:09,710 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 [2023-12-25 09:20:09,906 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 [2023-12-25 09:20:09,907 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:09,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2051932274, now seen corresponding path program 1 times [2023-12-25 09:20:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:09,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356895812] [2023-12-25 09:20:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:09,908 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 [2023-12-25 09:20:09,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:09,909 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) [2023-12-25 09:20:09,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 09:20:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:10,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:20:10,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:10,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:10,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:10,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356895812] [2023-12-25 09:20:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356895812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:20:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279416137] [2023-12-25 09:20:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:20:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:10,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:20:10,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:20:10,149 INFO L87 Difference]: Start difference. First operand 18769 states and 23898 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:10,254 INFO L93 Difference]: Finished difference Result 42291 states and 53802 transitions. [2023-12-25 09:20:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:20:10,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-25 09:20:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:10,283 INFO L225 Difference]: With dead ends: 42291 [2023-12-25 09:20:10,284 INFO L226 Difference]: Without dead ends: 24021 [2023-12-25 09:20:10,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:20:10,301 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 168 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 599 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 [2023-12-25 09:20:10,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 599 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:10,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24021 states. [2023-12-25 09:20:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24021 to 24019. [2023-12-25 09:20:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 1.259888417020568) internal successors, (30260), 24018 states have internal predecessors, (30260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 30260 transitions. [2023-12-25 09:20:10,695 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 30260 transitions. Word has length 76 [2023-12-25 09:20:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:10,696 INFO L495 AbstractCegarLoop]: Abstraction has 24019 states and 30260 transitions. [2023-12-25 09:20:10,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 30260 transitions. [2023-12-25 09:20:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 09:20:10,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:10,698 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] [2023-12-25 09:20:10,702 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:10,902 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 [2023-12-25 09:20:10,902 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:10,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:10,903 INFO L85 PathProgramCache]: Analyzing trace with hash 667979649, now seen corresponding path program 1 times [2023-12-25 09:20:10,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:10,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146744922] [2023-12-25 09:20:10,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:10,903 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 [2023-12-25 09:20:10,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:10,905 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) [2023-12-25 09:20:10,938 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 [2023-12-25 09:20:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:11,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:11,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:11,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:11,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:11,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146744922] [2023-12-25 09:20:11,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146744922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:11,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:11,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:11,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453099918] [2023-12-25 09:20:11,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:11,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:20:11,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:11,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:20:11,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:20:11,283 INFO L87 Difference]: Start difference. First operand 24019 states and 30260 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:11,676 INFO L93 Difference]: Finished difference Result 46108 states and 57578 transitions. [2023-12-25 09:20:11,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:11,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-25 09:20:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:11,715 INFO L225 Difference]: With dead ends: 46108 [2023-12-25 09:20:11,716 INFO L226 Difference]: Without dead ends: 33799 [2023-12-25 09:20:11,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:20:11,732 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1292 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:11,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 547 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:20:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33799 states. [2023-12-25 09:20:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33799 to 23952. [2023-12-25 09:20:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23952 states, 23951 states have (on average 1.2600726483236608) internal successors, (30180), 23951 states have internal predecessors, (30180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23952 states to 23952 states and 30180 transitions. [2023-12-25 09:20:12,062 INFO L78 Accepts]: Start accepts. Automaton has 23952 states and 30180 transitions. Word has length 76 [2023-12-25 09:20:12,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:12,062 INFO L495 AbstractCegarLoop]: Abstraction has 23952 states and 30180 transitions. [2023-12-25 09:20:12,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:12,062 INFO L276 IsEmpty]: Start isEmpty. Operand 23952 states and 30180 transitions. [2023-12-25 09:20:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 09:20:12,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:12,064 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] [2023-12-25 09:20:12,070 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 [2023-12-25 09:20:12,268 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 [2023-12-25 09:20:12,268 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:12,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1316845845, now seen corresponding path program 1 times [2023-12-25 09:20:12,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:12,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124612216] [2023-12-25 09:20:12,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:12,269 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 [2023-12-25 09:20:12,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:12,270 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) [2023-12-25 09:20:12,271 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 [2023-12-25 09:20:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:12,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:12,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:12,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:12,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:12,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124612216] [2023-12-25 09:20:12,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124612216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:12,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:12,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:20:12,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275287719] [2023-12-25 09:20:12,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:12,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:20:12,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:12,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:20:12,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:12,774 INFO L87 Difference]: Start difference. First operand 23952 states and 30180 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:13,566 INFO L93 Difference]: Finished difference Result 28044 states and 35425 transitions. [2023-12-25 09:20:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-25 09:20:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:13,597 INFO L225 Difference]: With dead ends: 28044 [2023-12-25 09:20:13,597 INFO L226 Difference]: Without dead ends: 26039 [2023-12-25 09:20:13,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:20:13,607 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 976 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:13,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 801 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:20:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26039 states. [2023-12-25 09:20:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26039 to 23939. [2023-12-25 09:20:13,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23939 states, 23938 states have (on average 1.2601721112874926) internal successors, (30166), 23938 states have internal predecessors, (30166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:13,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23939 states to 23939 states and 30166 transitions. [2023-12-25 09:20:13,929 INFO L78 Accepts]: Start accepts. Automaton has 23939 states and 30166 transitions. Word has length 78 [2023-12-25 09:20:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:13,929 INFO L495 AbstractCegarLoop]: Abstraction has 23939 states and 30166 transitions. [2023-12-25 09:20:13,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 23939 states and 30166 transitions. [2023-12-25 09:20:13,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 09:20:13,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:13,931 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] [2023-12-25 09:20:13,939 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 [2023-12-25 09:20:14,134 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 [2023-12-25 09:20:14,135 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:14,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1462633208, now seen corresponding path program 1 times [2023-12-25 09:20:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:14,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861769258] [2023-12-25 09:20:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:14,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:14,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:14,137 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) [2023-12-25 09:20:14,138 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 [2023-12-25 09:20:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:14,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:14,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:14,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:14,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:14,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861769258] [2023-12-25 09:20:14,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861769258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:14,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:14,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:14,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236239763] [2023-12-25 09:20:14,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:14,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:14,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:14,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:14,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:14,580 INFO L87 Difference]: Start difference. First operand 23939 states and 30166 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:14,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:14,701 INFO L93 Difference]: Finished difference Result 33333 states and 42333 transitions. [2023-12-25 09:20:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:14,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-25 09:20:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:14,728 INFO L225 Difference]: With dead ends: 33333 [2023-12-25 09:20:14,728 INFO L226 Difference]: Without dead ends: 26285 [2023-12-25 09:20:14,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:14,740 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 345 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:14,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 804 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26285 states. [2023-12-25 09:20:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26285 to 24749. [2023-12-25 09:20:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24749 states, 24748 states have (on average 1.253192177145628) internal successors, (31014), 24748 states have internal predecessors, (31014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24749 states to 24749 states and 31014 transitions. [2023-12-25 09:20:15,101 INFO L78 Accepts]: Start accepts. Automaton has 24749 states and 31014 transitions. Word has length 79 [2023-12-25 09:20:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:15,101 INFO L495 AbstractCegarLoop]: Abstraction has 24749 states and 31014 transitions. [2023-12-25 09:20:15,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 24749 states and 31014 transitions. [2023-12-25 09:20:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 09:20:15,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:15,103 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] [2023-12-25 09:20:15,107 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 (30)] Ended with exit code 0 [2023-12-25 09:20:15,307 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 [2023-12-25 09:20:15,307 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:15,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1937862919, now seen corresponding path program 1 times [2023-12-25 09:20:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494053115] [2023-12-25 09:20:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:15,308 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 [2023-12-25 09:20:15,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:15,309 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) [2023-12-25 09:20:15,310 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 [2023-12-25 09:20:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:15,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:15,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:15,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:15,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:15,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494053115] [2023-12-25 09:20:15,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494053115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:15,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:15,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162567731] [2023-12-25 09:20:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:15,681 INFO L87 Difference]: Start difference. First operand 24749 states and 31014 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:15,811 INFO L93 Difference]: Finished difference Result 36123 states and 45849 transitions. [2023-12-25 09:20:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:15,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-25 09:20:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:15,841 INFO L225 Difference]: With dead ends: 36123 [2023-12-25 09:20:15,841 INFO L226 Difference]: Without dead ends: 26703 [2023-12-25 09:20:15,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:15,854 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 529 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:15,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 718 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26703 states. [2023-12-25 09:20:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26703 to 25095. [2023-12-25 09:20:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25095 states, 25094 states have (on average 1.2420498924045589) internal successors, (31168), 25094 states have internal predecessors, (31168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25095 states to 25095 states and 31168 transitions. [2023-12-25 09:20:16,185 INFO L78 Accepts]: Start accepts. Automaton has 25095 states and 31168 transitions. Word has length 79 [2023-12-25 09:20:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:16,186 INFO L495 AbstractCegarLoop]: Abstraction has 25095 states and 31168 transitions. [2023-12-25 09:20:16,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 25095 states and 31168 transitions. [2023-12-25 09:20:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 09:20:16,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:16,187 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] [2023-12-25 09:20:16,195 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 [2023-12-25 09:20:16,390 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 [2023-12-25 09:20:16,391 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:16,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1833268149, now seen corresponding path program 1 times [2023-12-25 09:20:16,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:16,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547125307] [2023-12-25 09:20:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:16,392 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 [2023-12-25 09:20:16,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:16,393 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) [2023-12-25 09:20:16,396 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 [2023-12-25 09:20:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:16,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:16,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:16,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:16,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547125307] [2023-12-25 09:20:16,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547125307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:16,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:16,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:16,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274121438] [2023-12-25 09:20:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:16,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:20:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:16,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:20:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:16,753 INFO L87 Difference]: Start difference. First operand 25095 states and 31168 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:16,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:16,875 INFO L93 Difference]: Finished difference Result 32185 states and 40331 transitions. [2023-12-25 09:20:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:20:16,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-25 09:20:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:17,037 INFO L225 Difference]: With dead ends: 32185 [2023-12-25 09:20:17,038 INFO L226 Difference]: Without dead ends: 26395 [2023-12-25 09:20:17,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:20:17,056 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 516 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:17,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 744 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:20:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26395 states. [2023-12-25 09:20:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26395 to 25875. [2023-12-25 09:20:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25875 states, 25874 states have (on average 1.2370719641338797) internal successors, (32008), 25874 states have internal predecessors, (32008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25875 states to 25875 states and 32008 transitions. [2023-12-25 09:20:17,294 INFO L78 Accepts]: Start accepts. Automaton has 25875 states and 32008 transitions. Word has length 79 [2023-12-25 09:20:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:17,294 INFO L495 AbstractCegarLoop]: Abstraction has 25875 states and 32008 transitions. [2023-12-25 09:20:17,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25875 states and 32008 transitions. [2023-12-25 09:20:17,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:20:17,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:17,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:17,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-25 09:20:17,500 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 [2023-12-25 09:20:17,500 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:17,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1761500302, now seen corresponding path program 1 times [2023-12-25 09:20:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383019803] [2023-12-25 09:20:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:17,501 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 [2023-12-25 09:20:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:17,502 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) [2023-12-25 09:20:17,503 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 [2023-12-25 09:20:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:17,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:17,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:18,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:18,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:18,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383019803] [2023-12-25 09:20:18,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383019803] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:18,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:18,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:20:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815464117] [2023-12-25 09:20:18,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:18,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:20:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:20:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:20:18,553 INFO L87 Difference]: Start difference. First operand 25875 states and 32008 transitions. Second operand has 16 states, 16 states have (on average 11.0625) internal successors, (177), 15 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:21,488 INFO L93 Difference]: Finished difference Result 102452 states and 127300 transitions. [2023-12-25 09:20:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-25 09:20:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0625) internal successors, (177), 15 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 09:20:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:21,587 INFO L225 Difference]: With dead ends: 102452 [2023-12-25 09:20:21,587 INFO L226 Difference]: Without dead ends: 77850 [2023-12-25 09:20:21,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=522, Invalid=1830, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 09:20:21,629 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 3268 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3268 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:21,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3268 Valid, 2372 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 09:20:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77850 states. [2023-12-25 09:20:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77850 to 28953. [2023-12-25 09:20:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28953 states, 28952 states have (on average 1.2368748273003591) internal successors, (35810), 28952 states have internal predecessors, (35810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28953 states to 28953 states and 35810 transitions. [2023-12-25 09:20:22,420 INFO L78 Accepts]: Start accepts. Automaton has 28953 states and 35810 transitions. Word has length 95 [2023-12-25 09:20:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:22,420 INFO L495 AbstractCegarLoop]: Abstraction has 28953 states and 35810 transitions. [2023-12-25 09:20:22,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0625) internal successors, (177), 15 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 28953 states and 35810 transitions. [2023-12-25 09:20:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:20:22,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:22,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:22,429 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 [2023-12-25 09:20:22,628 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 [2023-12-25 09:20:22,628 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:22,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1978925782, now seen corresponding path program 1 times [2023-12-25 09:20:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:22,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191667110] [2023-12-25 09:20:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:22,629 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 [2023-12-25 09:20:22,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:22,673 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) [2023-12-25 09:20:22,674 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 [2023-12-25 09:20:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:22,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:22,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:23,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:23,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:23,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191667110] [2023-12-25 09:20:23,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191667110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:23,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:23,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:20:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057537593] [2023-12-25 09:20:23,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:23,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:23,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:23,292 INFO L87 Difference]: Start difference. First operand 28953 states and 35810 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:24,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:24,697 INFO L93 Difference]: Finished difference Result 42098 states and 51890 transitions. [2023-12-25 09:20:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 09:20:24,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 09:20:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:24,733 INFO L225 Difference]: With dead ends: 42098 [2023-12-25 09:20:24,733 INFO L226 Difference]: Without dead ends: 30628 [2023-12-25 09:20:24,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2023-12-25 09:20:24,748 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 923 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:24,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1034 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:20:24,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30628 states. [2023-12-25 09:20:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30628 to 28285. [2023-12-25 09:20:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28285 states, 28284 states have (on average 1.2324282279734124) internal successors, (34858), 28284 states have internal predecessors, (34858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28285 states to 28285 states and 34858 transitions. [2023-12-25 09:20:25,176 INFO L78 Accepts]: Start accepts. Automaton has 28285 states and 34858 transitions. Word has length 95 [2023-12-25 09:20:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:25,176 INFO L495 AbstractCegarLoop]: Abstraction has 28285 states and 34858 transitions. [2023-12-25 09:20:25,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 28285 states and 34858 transitions. [2023-12-25 09:20:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:20:25,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:25,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:25,184 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 (34)] Ended with exit code 0 [2023-12-25 09:20:25,382 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 [2023-12-25 09:20:25,382 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:25,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 392705784, now seen corresponding path program 1 times [2023-12-25 09:20:25,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:25,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77726538] [2023-12-25 09:20:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:25,383 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 [2023-12-25 09:20:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:25,384 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) [2023-12-25 09:20:25,385 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 [2023-12-25 09:20:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:25,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:25,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:26,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:26,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:26,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77726538] [2023-12-25 09:20:26,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77726538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:26,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:26,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:20:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830037014] [2023-12-25 09:20:26,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:26,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:20:26,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:20:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:20:26,432 INFO L87 Difference]: Start difference. First operand 28285 states and 34858 transitions. Second operand has 16 states, 16 states have (on average 11.3125) internal successors, (181), 15 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:28,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:28,451 INFO L93 Difference]: Finished difference Result 75646 states and 93106 transitions. [2023-12-25 09:20:28,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 09:20:28,452 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.3125) internal successors, (181), 15 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 09:20:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:28,568 INFO L225 Difference]: With dead ends: 75646 [2023-12-25 09:20:28,568 INFO L226 Difference]: Without dead ends: 48422 [2023-12-25 09:20:28,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 09:20:28,577 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1842 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:28,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 2108 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:20:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48422 states. [2023-12-25 09:20:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48422 to 29889. [2023-12-25 09:20:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29889 states, 29888 states have (on average 1.2259435224839401) internal successors, (36641), 29888 states have internal predecessors, (36641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29889 states to 29889 states and 36641 transitions. [2023-12-25 09:20:28,917 INFO L78 Accepts]: Start accepts. Automaton has 29889 states and 36641 transitions. Word has length 95 [2023-12-25 09:20:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:28,917 INFO L495 AbstractCegarLoop]: Abstraction has 29889 states and 36641 transitions. [2023-12-25 09:20:28,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.3125) internal successors, (181), 15 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29889 states and 36641 transitions. [2023-12-25 09:20:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:20:28,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:28,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:28,925 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 (35)] Ended with exit code 0 [2023-12-25 09:20:29,122 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 [2023-12-25 09:20:29,123 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:29,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:29,123 INFO L85 PathProgramCache]: Analyzing trace with hash 757262861, now seen corresponding path program 1 times [2023-12-25 09:20:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:29,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059081940] [2023-12-25 09:20:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:29,124 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 [2023-12-25 09:20:29,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:29,124 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) [2023-12-25 09:20:29,125 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 [2023-12-25 09:20:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:29,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:20:29,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:29,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:29,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059081940] [2023-12-25 09:20:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059081940] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:29,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:29,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 09:20:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741198032] [2023-12-25 09:20:29,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:29,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:20:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:29,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:20:29,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:29,622 INFO L87 Difference]: Start difference. First operand 29889 states and 36641 transitions. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:29,805 INFO L93 Difference]: Finished difference Result 82751 states and 101675 transitions. [2023-12-25 09:20:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:20:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:20:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:29,877 INFO L225 Difference]: With dead ends: 82751 [2023-12-25 09:20:29,878 INFO L226 Difference]: Without dead ends: 60534 [2023-12-25 09:20:29,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:29,901 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 475 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:29,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1334 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60534 states. [2023-12-25 09:20:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60534 to 48571. [2023-12-25 09:20:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48571 states, 48570 states have (on average 1.2168828494955735) internal successors, (59104), 48570 states have internal predecessors, (59104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48571 states to 48571 states and 59104 transitions. [2023-12-25 09:20:30,524 INFO L78 Accepts]: Start accepts. Automaton has 48571 states and 59104 transitions. Word has length 96 [2023-12-25 09:20:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:30,525 INFO L495 AbstractCegarLoop]: Abstraction has 48571 states and 59104 transitions. [2023-12-25 09:20:30,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 48571 states and 59104 transitions. [2023-12-25 09:20:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 09:20:30,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:30,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:30,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:30,733 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 [2023-12-25 09:20:30,734 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:30,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:30,735 INFO L85 PathProgramCache]: Analyzing trace with hash -632647542, now seen corresponding path program 1 times [2023-12-25 09:20:30,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:30,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696801358] [2023-12-25 09:20:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:30,735 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 [2023-12-25 09:20:30,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:30,736 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) [2023-12-25 09:20:30,738 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 [2023-12-25 09:20:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:30,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:30,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:31,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:31,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696801358] [2023-12-25 09:20:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696801358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:31,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:31,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:20:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250925479] [2023-12-25 09:20:31,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:20:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:20:31,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:20:31,233 INFO L87 Difference]: Start difference. First operand 48571 states and 59104 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:31,623 INFO L93 Difference]: Finished difference Result 92731 states and 111825 transitions. [2023-12-25 09:20:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-25 09:20:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:31,694 INFO L225 Difference]: With dead ends: 92731 [2023-12-25 09:20:31,694 INFO L226 Difference]: Without dead ends: 59500 [2023-12-25 09:20:31,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:20:31,728 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 633 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:31,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 466 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:20:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59500 states. [2023-12-25 09:20:32,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59500 to 48113. [2023-12-25 09:20:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48113 states, 48112 states have (on average 1.2056867309610908) internal successors, (58008), 48112 states have internal predecessors, (58008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48113 states to 48113 states and 58008 transitions. [2023-12-25 09:20:32,450 INFO L78 Accepts]: Start accepts. Automaton has 48113 states and 58008 transitions. Word has length 104 [2023-12-25 09:20:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:32,450 INFO L495 AbstractCegarLoop]: Abstraction has 48113 states and 58008 transitions. [2023-12-25 09:20:32,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 48113 states and 58008 transitions. [2023-12-25 09:20:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 09:20:32,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:32,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:32,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-25 09:20:32,658 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 [2023-12-25 09:20:32,659 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:32,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:32,659 INFO L85 PathProgramCache]: Analyzing trace with hash -719939866, now seen corresponding path program 1 times [2023-12-25 09:20:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:32,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279620370] [2023-12-25 09:20:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:32,660 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 [2023-12-25 09:20:32,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:32,661 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) [2023-12-25 09:20:32,662 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 [2023-12-25 09:20:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:32,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:32,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:32,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:33,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:33,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279620370] [2023-12-25 09:20:33,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279620370] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:33,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:33,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:20:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624172896] [2023-12-25 09:20:33,051 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:33,052 INFO L87 Difference]: Start difference. First operand 48113 states and 58008 transitions. Second operand has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:33,679 INFO L93 Difference]: Finished difference Result 121986 states and 146518 transitions. [2023-12-25 09:20:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-25 09:20:33,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:33,766 INFO L225 Difference]: With dead ends: 121986 [2023-12-25 09:20:33,766 INFO L226 Difference]: Without dead ends: 74990 [2023-12-25 09:20:33,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:33,800 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 735 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:33,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 746 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:20:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74990 states. [2023-12-25 09:20:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74990 to 52460. [2023-12-25 09:20:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52460 states, 52459 states have (on average 1.2033588135496291) internal successors, (63127), 52459 states have internal predecessors, (63127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52460 states to 52460 states and 63127 transitions. [2023-12-25 09:20:34,748 INFO L78 Accepts]: Start accepts. Automaton has 52460 states and 63127 transitions. Word has length 104 [2023-12-25 09:20:34,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:34,748 INFO L495 AbstractCegarLoop]: Abstraction has 52460 states and 63127 transitions. [2023-12-25 09:20:34,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 52460 states and 63127 transitions. [2023-12-25 09:20:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 09:20:34,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:34,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:34,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-25 09:20:34,956 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 [2023-12-25 09:20:34,957 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:34,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash -45743371, now seen corresponding path program 1 times [2023-12-25 09:20:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496147421] [2023-12-25 09:20:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:34,958 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 [2023-12-25 09:20:34,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:34,959 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) [2023-12-25 09:20:34,960 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 [2023-12-25 09:20:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:35,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:20:35,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:35,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:35,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:35,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496147421] [2023-12-25 09:20:35,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496147421] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:35,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:35,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:20:35,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198594010] [2023-12-25 09:20:35,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:35,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:35,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:35,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:35,316 INFO L87 Difference]: Start difference. First operand 52460 states and 63127 transitions. Second operand has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:35,995 INFO L93 Difference]: Finished difference Result 120269 states and 143777 transitions. [2023-12-25 09:20:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:20:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-25 09:20:35,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:36,085 INFO L225 Difference]: With dead ends: 120269 [2023-12-25 09:20:36,085 INFO L226 Difference]: Without dead ends: 80843 [2023-12-25 09:20:36,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:36,120 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 767 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:36,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 820 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:20:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80843 states. [2023-12-25 09:20:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80843 to 55654. [2023-12-25 09:20:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55654 states, 55653 states have (on average 1.200492336441881) internal successors, (66811), 55653 states have internal predecessors, (66811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55654 states to 55654 states and 66811 transitions. [2023-12-25 09:20:37,404 INFO L78 Accepts]: Start accepts. Automaton has 55654 states and 66811 transitions. Word has length 104 [2023-12-25 09:20:37,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:37,404 INFO L495 AbstractCegarLoop]: Abstraction has 55654 states and 66811 transitions. [2023-12-25 09:20:37,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 55654 states and 66811 transitions. [2023-12-25 09:20:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:37,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:37,414 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:37,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-25 09:20:37,614 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 [2023-12-25 09:20:37,614 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:37,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:37,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1803914390, now seen corresponding path program 1 times [2023-12-25 09:20:37,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:37,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447192944] [2023-12-25 09:20:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:37,615 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 [2023-12-25 09:20:37,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:37,617 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) [2023-12-25 09:20:37,618 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 [2023-12-25 09:20:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:37,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:20:37,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:20:38,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:38,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:38,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447192944] [2023-12-25 09:20:38,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447192944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:38,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:38,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:20:38,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924029096] [2023-12-25 09:20:38,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:38,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:38,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:38,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:38,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:38,441 INFO L87 Difference]: Start difference. First operand 55654 states and 66811 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:39,559 INFO L93 Difference]: Finished difference Result 81323 states and 97768 transitions. [2023-12-25 09:20:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:20:39,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:39,647 INFO L225 Difference]: With dead ends: 81323 [2023-12-25 09:20:39,647 INFO L226 Difference]: Without dead ends: 75255 [2023-12-25 09:20:39,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:20:39,669 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 807 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:39,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 988 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:20:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75255 states. [2023-12-25 09:20:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75255 to 56607. [2023-12-25 09:20:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56607 states, 56606 states have (on average 1.2005617779034026) internal successors, (67959), 56606 states have internal predecessors, (67959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:40,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56607 states to 56607 states and 67959 transitions. [2023-12-25 09:20:40,425 INFO L78 Accepts]: Start accepts. Automaton has 56607 states and 67959 transitions. Word has length 107 [2023-12-25 09:20:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:40,426 INFO L495 AbstractCegarLoop]: Abstraction has 56607 states and 67959 transitions. [2023-12-25 09:20:40,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:40,426 INFO L276 IsEmpty]: Start isEmpty. Operand 56607 states and 67959 transitions. [2023-12-25 09:20:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:40,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:40,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:40,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:40,633 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 [2023-12-25 09:20:40,634 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:40,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1167352475, now seen corresponding path program 1 times [2023-12-25 09:20:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:40,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886471776] [2023-12-25 09:20:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:40,635 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 [2023-12-25 09:20:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:40,636 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) [2023-12-25 09:20:40,636 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 (41)] Waiting until timeout for monitored process [2023-12-25 09:20:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:40,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:20:40,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:40,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:40,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:40,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886471776] [2023-12-25 09:20:40,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886471776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:40,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:40,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:20:40,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555819467] [2023-12-25 09:20:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:40,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:20:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:40,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:20:40,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:40,817 INFO L87 Difference]: Start difference. First operand 56607 states and 67959 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:41,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:41,300 INFO L93 Difference]: Finished difference Result 110447 states and 132712 transitions. [2023-12-25 09:20:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:20:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:41,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:41,377 INFO L225 Difference]: With dead ends: 110447 [2023-12-25 09:20:41,377 INFO L226 Difference]: Without dead ends: 55022 [2023-12-25 09:20:41,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:20:41,390 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 112 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:41,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 421 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:20:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55022 states. [2023-12-25 09:20:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55022 to 52423. [2023-12-25 09:20:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52423 states, 52422 states have (on average 1.1748502537102743) internal successors, (61588), 52422 states have internal predecessors, (61588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52423 states to 52423 states and 61588 transitions. [2023-12-25 09:20:41,954 INFO L78 Accepts]: Start accepts. Automaton has 52423 states and 61588 transitions. Word has length 107 [2023-12-25 09:20:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:41,954 INFO L495 AbstractCegarLoop]: Abstraction has 52423 states and 61588 transitions. [2023-12-25 09:20:41,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 52423 states and 61588 transitions. [2023-12-25 09:20:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:41,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:41,959 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:41,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:42,161 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 [2023-12-25 09:20:42,161 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:42,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash -906614593, now seen corresponding path program 1 times [2023-12-25 09:20:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:42,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777735088] [2023-12-25 09:20:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:42,162 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 [2023-12-25 09:20:42,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:42,163 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) [2023-12-25 09:20:42,164 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 [2023-12-25 09:20:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:42,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:20:42,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:43,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:43,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:43,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777735088] [2023-12-25 09:20:43,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777735088] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:43,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:43,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 09:20:43,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261985314] [2023-12-25 09:20:43,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:43,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:20:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:43,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:20:43,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:20:43,432 INFO L87 Difference]: Start difference. First operand 52423 states and 61588 transitions. Second operand has 21 states, 21 states have (on average 9.476190476190476) internal successors, (199), 21 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:46,710 INFO L93 Difference]: Finished difference Result 146700 states and 171325 transitions. [2023-12-25 09:20:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 09:20:46,710 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.476190476190476) internal successors, (199), 21 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:46,883 INFO L225 Difference]: With dead ends: 146700 [2023-12-25 09:20:46,883 INFO L226 Difference]: Without dead ends: 138471 [2023-12-25 09:20:46,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=820, Invalid=3736, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 09:20:46,922 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 3637 mSDsluCounter, 5503 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 5945 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:46,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3637 Valid, 5945 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:20:47,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138471 states. [2023-12-25 09:20:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138471 to 52458. [2023-12-25 09:20:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52458 states, 52457 states have (on average 1.1747717177879025) internal successors, (61625), 52457 states have internal predecessors, (61625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52458 states to 52458 states and 61625 transitions. [2023-12-25 09:20:47,981 INFO L78 Accepts]: Start accepts. Automaton has 52458 states and 61625 transitions. Word has length 107 [2023-12-25 09:20:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:47,981 INFO L495 AbstractCegarLoop]: Abstraction has 52458 states and 61625 transitions. [2023-12-25 09:20:47,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.476190476190476) internal successors, (199), 21 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 52458 states and 61625 transitions. [2023-12-25 09:20:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:47,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:47,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:47,989 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 [2023-12-25 09:20:48,186 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 [2023-12-25 09:20:48,187 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:48,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:48,187 INFO L85 PathProgramCache]: Analyzing trace with hash 875788411, now seen corresponding path program 1 times [2023-12-25 09:20:48,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567728197] [2023-12-25 09:20:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:48,188 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 [2023-12-25 09:20:48,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:48,189 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) [2023-12-25 09:20:48,189 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 [2023-12-25 09:20:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:48,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:20:48,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 09:20:49,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:49,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567728197] [2023-12-25 09:20:49,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567728197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:49,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:49,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:20:49,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123595254] [2023-12-25 09:20:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:49,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:20:49,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:49,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:20:49,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:20:49,073 INFO L87 Difference]: Start difference. First operand 52458 states and 61625 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:50,232 INFO L93 Difference]: Finished difference Result 85375 states and 100593 transitions. [2023-12-25 09:20:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:20:50,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:50,447 INFO L225 Difference]: With dead ends: 85375 [2023-12-25 09:20:50,447 INFO L226 Difference]: Without dead ends: 77105 [2023-12-25 09:20:50,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:20:50,454 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 951 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:50,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1079 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:20:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77105 states. [2023-12-25 09:20:50,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77105 to 52420. [2023-12-25 09:20:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52420 states, 52419 states have (on average 1.1747648753314637) internal successors, (61580), 52419 states have internal predecessors, (61580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52420 states to 52420 states and 61580 transitions. [2023-12-25 09:20:51,112 INFO L78 Accepts]: Start accepts. Automaton has 52420 states and 61580 transitions. Word has length 107 [2023-12-25 09:20:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:51,113 INFO L495 AbstractCegarLoop]: Abstraction has 52420 states and 61580 transitions. [2023-12-25 09:20:51,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 52420 states and 61580 transitions. [2023-12-25 09:20:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:51,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:51,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:51,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-25 09:20:51,319 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 [2023-12-25 09:20:51,319 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:51,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1759957472, now seen corresponding path program 1 times [2023-12-25 09:20:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228534437] [2023-12-25 09:20:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:51,321 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 [2023-12-25 09:20:51,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:51,322 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) [2023-12-25 09:20:51,323 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 (44)] Waiting until timeout for monitored process [2023-12-25 09:20:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:51,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 09:20:51,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:52,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:52,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:52,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228534437] [2023-12-25 09:20:52,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228534437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:52,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 09:20:52,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890163046] [2023-12-25 09:20:52,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:52,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 09:20:52,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:52,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 09:20:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-25 09:20:52,244 INFO L87 Difference]: Start difference. First operand 52420 states and 61580 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:53,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:53,311 INFO L93 Difference]: Finished difference Result 94258 states and 111077 transitions. [2023-12-25 09:20:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:20:53,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:53,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:53,405 INFO L225 Difference]: With dead ends: 94258 [2023-12-25 09:20:53,405 INFO L226 Difference]: Without dead ends: 89826 [2023-12-25 09:20:53,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:20:53,432 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1254 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:53,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2867 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:20:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89826 states. [2023-12-25 09:20:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89826 to 56222. [2023-12-25 09:20:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56222 states, 56221 states have (on average 1.174365450632326) internal successors, (66024), 56221 states have internal predecessors, (66024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56222 states to 56222 states and 66024 transitions. [2023-12-25 09:20:54,284 INFO L78 Accepts]: Start accepts. Automaton has 56222 states and 66024 transitions. Word has length 107 [2023-12-25 09:20:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:54,285 INFO L495 AbstractCegarLoop]: Abstraction has 56222 states and 66024 transitions. [2023-12-25 09:20:54,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 56222 states and 66024 transitions. [2023-12-25 09:20:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:54,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:54,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:54,295 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 (44)] Forceful destruction successful, exit code 0 [2023-12-25 09:20:54,490 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 [2023-12-25 09:20:54,491 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:54,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:54,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1131321989, now seen corresponding path program 1 times [2023-12-25 09:20:54,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:54,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900268077] [2023-12-25 09:20:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:54,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:20:54,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:54,493 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) [2023-12-25 09:20:54,500 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 [2023-12-25 09:20:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:54,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:20:54,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 09:20:55,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:20:55,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:55,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900268077] [2023-12-25 09:20:55,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900268077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:20:55,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:20:55,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:20:55,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039194635] [2023-12-25 09:20:55,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:20:55,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:20:55,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:55,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:20:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:20:55,122 INFO L87 Difference]: Start difference. First operand 56222 states and 66024 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:55,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:20:55,994 INFO L93 Difference]: Finished difference Result 92649 states and 108916 transitions. [2023-12-25 09:20:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:20:55,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:20:55,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:20:56,077 INFO L225 Difference]: With dead ends: 92649 [2023-12-25 09:20:56,078 INFO L226 Difference]: Without dead ends: 65962 [2023-12-25 09:20:56,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:20:56,108 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1180 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:20:56,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 807 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:20:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65962 states. [2023-12-25 09:20:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65962 to 53616. [2023-12-25 09:20:56,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53616 states, 53615 states have (on average 1.174298237433554) internal successors, (62960), 53615 states have internal predecessors, (62960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53616 states to 53616 states and 62960 transitions. [2023-12-25 09:20:56,785 INFO L78 Accepts]: Start accepts. Automaton has 53616 states and 62960 transitions. Word has length 107 [2023-12-25 09:20:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:20:56,785 INFO L495 AbstractCegarLoop]: Abstraction has 53616 states and 62960 transitions. [2023-12-25 09:20:56,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:20:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 53616 states and 62960 transitions. [2023-12-25 09:20:56,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 09:20:56,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:20:56,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:20:56,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-12-25 09:20:56,990 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 [2023-12-25 09:20:56,990 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:20:56,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:20:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1561175584, now seen corresponding path program 1 times [2023-12-25 09:20:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:20:56,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432933520] [2023-12-25 09:20:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:20:56,991 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 [2023-12-25 09:20:56,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:20:56,992 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) [2023-12-25 09:20:56,993 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 [2023-12-25 09:20:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:20:57,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:20:57,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:20:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:57,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:20:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:20:58,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:20:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432933520] [2023-12-25 09:20:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432933520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:20:58,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:20:58,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 09:20:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392778457] [2023-12-25 09:20:58,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:20:58,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:20:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:20:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:20:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:20:58,243 INFO L87 Difference]: Start difference. First operand 53616 states and 62960 transitions. Second operand has 21 states, 21 states have (on average 9.523809523809524) internal successors, (200), 21 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:01,983 INFO L93 Difference]: Finished difference Result 158350 states and 185549 transitions. [2023-12-25 09:21:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 09:21:01,984 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.523809523809524) internal successors, (200), 21 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 09:21:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:02,154 INFO L225 Difference]: With dead ends: 158350 [2023-12-25 09:21:02,154 INFO L226 Difference]: Without dead ends: 146970 [2023-12-25 09:21:02,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1311, Invalid=4239, Unknown=0, NotChecked=0, Total=5550 [2023-12-25 09:21:02,197 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 3185 mSDsluCounter, 6080 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3185 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:02,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3185 Valid, 6644 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:21:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146970 states. [2023-12-25 09:21:03,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146970 to 71276. [2023-12-25 09:21:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71276 states, 71275 states have (on average 1.1688670641880041) internal successors, (83311), 71275 states have internal predecessors, (83311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71276 states to 71276 states and 83311 transitions. [2023-12-25 09:21:03,437 INFO L78 Accepts]: Start accepts. Automaton has 71276 states and 83311 transitions. Word has length 107 [2023-12-25 09:21:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:03,437 INFO L495 AbstractCegarLoop]: Abstraction has 71276 states and 83311 transitions. [2023-12-25 09:21:03,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.523809523809524) internal successors, (200), 21 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 71276 states and 83311 transitions. [2023-12-25 09:21:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 09:21:03,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:03,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:03,448 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 [2023-12-25 09:21:03,646 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 [2023-12-25 09:21:03,647 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:03,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash 973327091, now seen corresponding path program 1 times [2023-12-25 09:21:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363276496] [2023-12-25 09:21:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:03,648 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 [2023-12-25 09:21:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:03,649 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) [2023-12-25 09:21:03,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-25 09:21:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:03,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:03,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 09:21:04,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:04,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363276496] [2023-12-25 09:21:04,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363276496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:04,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:04,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 09:21:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889061476] [2023-12-25 09:21:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:21:04,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:21:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:21:04,312 INFO L87 Difference]: Start difference. First operand 71276 states and 83311 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:04,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:04,945 INFO L93 Difference]: Finished difference Result 83505 states and 97769 transitions. [2023-12-25 09:21:04,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:21:04,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-25 09:21:04,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:05,030 INFO L225 Difference]: With dead ends: 83505 [2023-12-25 09:21:05,030 INFO L226 Difference]: Without dead ends: 78360 [2023-12-25 09:21:05,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:21:05,056 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1169 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:05,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1476 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:21:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78360 states. [2023-12-25 09:21:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78360 to 71179. [2023-12-25 09:21:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71179 states, 71178 states have (on average 1.168928601534182) internal successors, (83202), 71178 states have internal predecessors, (83202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71179 states to 71179 states and 83202 transitions. [2023-12-25 09:21:05,932 INFO L78 Accepts]: Start accepts. Automaton has 71179 states and 83202 transitions. Word has length 108 [2023-12-25 09:21:05,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:05,932 INFO L495 AbstractCegarLoop]: Abstraction has 71179 states and 83202 transitions. [2023-12-25 09:21:05,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:05,932 INFO L276 IsEmpty]: Start isEmpty. Operand 71179 states and 83202 transitions. [2023-12-25 09:21:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 09:21:05,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:05,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:05,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:06,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:06,137 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:06,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash 460489130, now seen corresponding path program 1 times [2023-12-25 09:21:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:06,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968918405] [2023-12-25 09:21:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:06,138 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 [2023-12-25 09:21:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:06,139 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:06,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-25 09:21:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:06,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:21:06,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 09:21:06,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:06,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:06,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968918405] [2023-12-25 09:21:06,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968918405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:06,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:21:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555718691] [2023-12-25 09:21:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:21:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:21:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:21:06,540 INFO L87 Difference]: Start difference. First operand 71179 states and 83202 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:07,237 INFO L93 Difference]: Finished difference Result 118359 states and 138795 transitions. [2023-12-25 09:21:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:21:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-25 09:21:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:07,337 INFO L225 Difference]: With dead ends: 118359 [2023-12-25 09:21:07,337 INFO L226 Difference]: Without dead ends: 89553 [2023-12-25 09:21:07,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-25 09:21:07,371 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1062 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:07,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1058 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:21:07,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89553 states. [2023-12-25 09:21:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89553 to 57967. [2023-12-25 09:21:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57967 states, 57966 states have (on average 1.166735672635683) internal successors, (67631), 57966 states have internal predecessors, (67631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57967 states to 57967 states and 67631 transitions. [2023-12-25 09:21:08,139 INFO L78 Accepts]: Start accepts. Automaton has 57967 states and 67631 transitions. Word has length 108 [2023-12-25 09:21:08,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:08,139 INFO L495 AbstractCegarLoop]: Abstraction has 57967 states and 67631 transitions. [2023-12-25 09:21:08,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:08,139 INFO L276 IsEmpty]: Start isEmpty. Operand 57967 states and 67631 transitions. [2023-12-25 09:21:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 09:21:08,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:08,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:08,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:08,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:08,349 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:08,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:08,349 INFO L85 PathProgramCache]: Analyzing trace with hash 79249428, now seen corresponding path program 1 times [2023-12-25 09:21:08,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:08,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582080605] [2023-12-25 09:21:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:08,349 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 [2023-12-25 09:21:08,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:08,350 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:08,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-25 09:21:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:08,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:08,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 09:21:09,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:09,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:09,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582080605] [2023-12-25 09:21:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582080605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:09,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 09:21:09,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084404382] [2023-12-25 09:21:09,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:09,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:21:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:21:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:21:09,013 INFO L87 Difference]: Start difference. First operand 57967 states and 67631 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:09,646 INFO L93 Difference]: Finished difference Result 104640 states and 122578 transitions. [2023-12-25 09:21:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:21:09,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-25 09:21:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:09,734 INFO L225 Difference]: With dead ends: 104640 [2023-12-25 09:21:09,735 INFO L226 Difference]: Without dead ends: 77308 [2023-12-25 09:21:09,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:21:09,764 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1006 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:09,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1695 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:21:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77308 states. [2023-12-25 09:21:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77308 to 54133. [2023-12-25 09:21:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54133 states, 54132 states have (on average 1.1676642281829601) internal successors, (63208), 54132 states have internal predecessors, (63208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54133 states to 54133 states and 63208 transitions. [2023-12-25 09:21:10,619 INFO L78 Accepts]: Start accepts. Automaton has 54133 states and 63208 transitions. Word has length 108 [2023-12-25 09:21:10,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:10,619 INFO L495 AbstractCegarLoop]: Abstraction has 54133 states and 63208 transitions. [2023-12-25 09:21:10,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 54133 states and 63208 transitions. [2023-12-25 09:21:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 09:21:10,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:10,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:10,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2023-12-25 09:21:10,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:10,824 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:10,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1839431977, now seen corresponding path program 1 times [2023-12-25 09:21:10,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:10,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965486383] [2023-12-25 09:21:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:10,825 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 [2023-12-25 09:21:10,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:10,826 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:10,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-25 09:21:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:10,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:10,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 09:21:11,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:11,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:11,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965486383] [2023-12-25 09:21:11,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965486383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:11,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:11,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:21:11,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971839198] [2023-12-25 09:21:11,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:11,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:21:11,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:21:11,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:21:11,640 INFO L87 Difference]: Start difference. First operand 54133 states and 63208 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:12,648 INFO L93 Difference]: Finished difference Result 74240 states and 86682 transitions. [2023-12-25 09:21:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:21:12,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-25 09:21:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:12,718 INFO L225 Difference]: With dead ends: 74240 [2023-12-25 09:21:12,718 INFO L226 Difference]: Without dead ends: 65816 [2023-12-25 09:21:12,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:21:12,741 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1108 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:12,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 976 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:21:12,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65816 states. [2023-12-25 09:21:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65816 to 54143. [2023-12-25 09:21:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54143 states, 54142 states have (on average 1.1676147907354735) internal successors, (63217), 54142 states have internal predecessors, (63217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54143 states to 54143 states and 63217 transitions. [2023-12-25 09:21:13,522 INFO L78 Accepts]: Start accepts. Automaton has 54143 states and 63217 transitions. Word has length 109 [2023-12-25 09:21:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:13,523 INFO L495 AbstractCegarLoop]: Abstraction has 54143 states and 63217 transitions. [2023-12-25 09:21:13,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 54143 states and 63217 transitions. [2023-12-25 09:21:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 09:21:13,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:13,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:13,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:13,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:13,731 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:13,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash 714118204, now seen corresponding path program 1 times [2023-12-25 09:21:13,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:13,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116857019] [2023-12-25 09:21:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:13,734 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 [2023-12-25 09:21:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:13,736 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:13,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-25 09:21:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:13,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:13,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:14,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:14,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116857019] [2023-12-25 09:21:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116857019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:14,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:14,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 09:21:14,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425320707] [2023-12-25 09:21:14,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:14,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:21:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:14,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:21:14,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:21:14,957 INFO L87 Difference]: Start difference. First operand 54143 states and 63217 transitions. Second operand has 21 states, 21 states have (on average 9.666666666666666) internal successors, (203), 21 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:18,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:18,387 INFO L93 Difference]: Finished difference Result 150571 states and 173936 transitions. [2023-12-25 09:21:18,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-25 09:21:18,387 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.666666666666666) internal successors, (203), 21 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-25 09:21:18,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:18,547 INFO L225 Difference]: With dead ends: 150571 [2023-12-25 09:21:18,547 INFO L226 Difference]: Without dead ends: 144467 [2023-12-25 09:21:18,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=769, Invalid=3521, Unknown=0, NotChecked=0, Total=4290 [2023-12-25 09:21:18,587 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2896 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 6107 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:18,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 6107 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:21:18,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144467 states. [2023-12-25 09:21:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144467 to 54155. [2023-12-25 09:21:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54155 states, 54154 states have (on average 1.1675776489271337) internal successors, (63229), 54154 states have internal predecessors, (63229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54155 states to 54155 states and 63229 transitions. [2023-12-25 09:21:19,773 INFO L78 Accepts]: Start accepts. Automaton has 54155 states and 63229 transitions. Word has length 109 [2023-12-25 09:21:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:19,773 INFO L495 AbstractCegarLoop]: Abstraction has 54155 states and 63229 transitions. [2023-12-25 09:21:19,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.666666666666666) internal successors, (203), 21 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 54155 states and 63229 transitions. [2023-12-25 09:21:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 09:21:19,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:19,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:19,782 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 (51)] Ended with exit code 0 [2023-12-25 09:21:19,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:19,978 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:19,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash -27451817, now seen corresponding path program 1 times [2023-12-25 09:21:19,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:19,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463903002] [2023-12-25 09:21:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:19,979 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 [2023-12-25 09:21:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:19,980 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:21:19,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-25 09:21:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:20,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:20,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 09:21:20,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:20,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463903002] [2023-12-25 09:21:20,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463903002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:20,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:20,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:21:20,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948535470] [2023-12-25 09:21:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:20,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:21:20,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:21:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:21:20,661 INFO L87 Difference]: Start difference. First operand 54155 states and 63229 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:21,893 INFO L93 Difference]: Finished difference Result 121734 states and 142071 transitions. [2023-12-25 09:21:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:21:21,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-25 09:21:21,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:22,022 INFO L225 Difference]: With dead ends: 121734 [2023-12-25 09:21:22,023 INFO L226 Difference]: Without dead ends: 104141 [2023-12-25 09:21:22,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:21:22,058 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 1557 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:22,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 977 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:21:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104141 states. [2023-12-25 09:21:22,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104141 to 54084. [2023-12-25 09:21:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54084 states, 54083 states have (on average 1.1675757631788177) internal successors, (63146), 54083 states have internal predecessors, (63146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54084 states to 54084 states and 63146 transitions. [2023-12-25 09:21:22,897 INFO L78 Accepts]: Start accepts. Automaton has 54084 states and 63146 transitions. Word has length 109 [2023-12-25 09:21:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:22,897 INFO L495 AbstractCegarLoop]: Abstraction has 54084 states and 63146 transitions. [2023-12-25 09:21:22,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:22,897 INFO L276 IsEmpty]: Start isEmpty. Operand 54084 states and 63146 transitions. [2023-12-25 09:21:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 09:21:22,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:22,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:22,903 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 (52)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:23,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:23,101 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:23,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash -131195566, now seen corresponding path program 1 times [2023-12-25 09:21:23,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:23,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950148525] [2023-12-25 09:21:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:23,102 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 [2023-12-25 09:21:23,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:23,103 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-25 09:21:23,105 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 (53)] Waiting until timeout for monitored process [2023-12-25 09:21:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:23,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 09:21:23,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:24,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:24,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950148525] [2023-12-25 09:21:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950148525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:24,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:24,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 09:21:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348901162] [2023-12-25 09:21:24,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:24,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 09:21:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 09:21:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-25 09:21:24,065 INFO L87 Difference]: Start difference. First operand 54084 states and 63146 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:25,555 INFO L93 Difference]: Finished difference Result 116046 states and 135686 transitions. [2023-12-25 09:21:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:21:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-25 09:21:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:25,646 INFO L225 Difference]: With dead ends: 116046 [2023-12-25 09:21:25,646 INFO L226 Difference]: Without dead ends: 96274 [2023-12-25 09:21:25,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:21:25,659 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1470 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2976 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:25,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 2976 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:21:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96274 states. [2023-12-25 09:21:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96274 to 63177. [2023-12-25 09:21:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63177 states, 63176 states have (on average 1.1638438647587692) internal successors, (73527), 63176 states have internal predecessors, (73527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63177 states to 63177 states and 73527 transitions. [2023-12-25 09:21:26,389 INFO L78 Accepts]: Start accepts. Automaton has 63177 states and 73527 transitions. Word has length 109 [2023-12-25 09:21:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:26,389 INFO L495 AbstractCegarLoop]: Abstraction has 63177 states and 73527 transitions. [2023-12-25 09:21:26,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 63177 states and 73527 transitions. [2023-12-25 09:21:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 09:21:26,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:26,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:26,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2023-12-25 09:21:26,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:26,600 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:26,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1914098, now seen corresponding path program 1 times [2023-12-25 09:21:26,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:26,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378382857] [2023-12-25 09:21:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:26,601 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 [2023-12-25 09:21:26,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:26,602 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-25 09:21:26,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2023-12-25 09:21:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:26,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:21:26,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:27,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:27,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:27,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378382857] [2023-12-25 09:21:27,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378382857] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:27,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:27,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 09:21:27,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041888807] [2023-12-25 09:21:27,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:27,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:21:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:21:27,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:21:27,939 INFO L87 Difference]: Start difference. First operand 63177 states and 73527 transitions. Second operand has 21 states, 21 states have (on average 9.714285714285714) internal successors, (204), 21 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:31,945 INFO L93 Difference]: Finished difference Result 131956 states and 153444 transitions. [2023-12-25 09:21:31,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 09:21:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.714285714285714) internal successors, (204), 21 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-25 09:21:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:32,073 INFO L225 Difference]: With dead ends: 131956 [2023-12-25 09:21:32,074 INFO L226 Difference]: Without dead ends: 112288 [2023-12-25 09:21:32,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=955, Invalid=3205, Unknown=0, NotChecked=0, Total=4160 [2023-12-25 09:21:32,111 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 2483 mSDsluCounter, 6327 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:32,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 6850 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:21:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112288 states. [2023-12-25 09:21:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112288 to 64511. [2023-12-25 09:21:32,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64511 states, 64510 states have (on average 1.1594791505192994) internal successors, (74798), 64510 states have internal predecessors, (74798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64511 states to 64511 states and 74798 transitions. [2023-12-25 09:21:33,044 INFO L78 Accepts]: Start accepts. Automaton has 64511 states and 74798 transitions. Word has length 109 [2023-12-25 09:21:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 64511 states and 74798 transitions. [2023-12-25 09:21:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.714285714285714) internal successors, (204), 21 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 64511 states and 74798 transitions. [2023-12-25 09:21:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 09:21:33,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:33,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:33,051 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 (54)] Ended with exit code 0 [2023-12-25 09:21:33,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:33,248 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:33,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash 137126087, now seen corresponding path program 1 times [2023-12-25 09:21:33,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147502698] [2023-12-25 09:21:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:33,249 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 [2023-12-25 09:21:33,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:33,250 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-25 09:21:33,252 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 (55)] Waiting until timeout for monitored process [2023-12-25 09:21:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:33,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:21:33,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:33,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:21:33,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147502698] [2023-12-25 09:21:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147502698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:21:33,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:21:33,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 09:21:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577120148] [2023-12-25 09:21:33,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:21:33,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:21:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:21:33,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:21:33,555 INFO L87 Difference]: Start difference. First operand 64511 states and 74798 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:21:34,104 INFO L93 Difference]: Finished difference Result 99308 states and 115654 transitions. [2023-12-25 09:21:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:21:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-25 09:21:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:21:34,441 INFO L225 Difference]: With dead ends: 99308 [2023-12-25 09:21:34,441 INFO L226 Difference]: Without dead ends: 90186 [2023-12-25 09:21:34,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:21:34,461 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 621 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:21:34,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 2945 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:21:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90186 states. [2023-12-25 09:21:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90186 to 73309. [2023-12-25 09:21:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73309 states, 73308 states have (on average 1.160596387843073) internal successors, (85081), 73308 states have internal predecessors, (85081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73309 states to 73309 states and 85081 transitions. [2023-12-25 09:21:35,247 INFO L78 Accepts]: Start accepts. Automaton has 73309 states and 85081 transitions. Word has length 110 [2023-12-25 09:21:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:21:35,247 INFO L495 AbstractCegarLoop]: Abstraction has 73309 states and 85081 transitions. [2023-12-25 09:21:35,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:21:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 73309 states and 85081 transitions. [2023-12-25 09:21:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 09:21:35,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:21:35,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:21:35,255 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 (55)] Ended with exit code 0 [2023-12-25 09:21:35,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:21:35,453 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:21:35,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:21:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1344478099, now seen corresponding path program 1 times [2023-12-25 09:21:35,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:21:35,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948487335] [2023-12-25 09:21:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:21:35,454 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 [2023-12-25 09:21:35,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:21:35,455 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-25 09:21:35,456 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 (56)] Waiting until timeout for monitored process [2023-12-25 09:21:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:21:35,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-25 09:21:35,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:21:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:38,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:21:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:21:39,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:21:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948487335] [2023-12-25 09:21:39,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948487335] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:21:39,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:21:39,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17] total 37 [2023-12-25 09:21:39,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282397185] [2023-12-25 09:21:39,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:21:39,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-25 09:21:39,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:21:39,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-25 09:21:39,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1161, Unknown=0, NotChecked=0, Total=1332 [2023-12-25 09:21:39,137 INFO L87 Difference]: Start difference. First operand 73309 states and 85081 transitions. Second operand has 37 states, 37 states have (on average 5.945945945945946) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:22:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:22:59,641 INFO L93 Difference]: Finished difference Result 351923 states and 406192 transitions. [2023-12-25 09:22:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 328 states. [2023-12-25 09:22:59,642 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.945945945945946) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-25 09:22:59,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:00,039 INFO L225 Difference]: With dead ends: 351923 [2023-12-25 09:23:00,039 INFO L226 Difference]: Without dead ends: 342791 [2023-12-25 09:23:00,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54382 ImplicationChecksByTransitivity, 70.7s TimeCoverageRelationStatistics Valid=12520, Invalid=116002, Unknown=0, NotChecked=0, Total=128522 [2023-12-25 09:23:00,110 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 6698 mSDsluCounter, 12199 mSDsCounter, 0 mSdLazyCounter, 6922 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6698 SdHoareTripleChecker+Valid, 12895 SdHoareTripleChecker+Invalid, 7065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 6922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:00,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6698 Valid, 12895 Invalid, 7065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 6922 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-25 09:23:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342791 states. [2023-12-25 09:23:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342791 to 81694. [2023-12-25 09:23:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81694 states, 81693 states have (on average 1.161103154493041) internal successors, (94854), 81693 states have internal predecessors, (94854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81694 states to 81694 states and 94854 transitions. [2023-12-25 09:23:02,251 INFO L78 Accepts]: Start accepts. Automaton has 81694 states and 94854 transitions. Word has length 115 [2023-12-25 09:23:02,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:02,251 INFO L495 AbstractCegarLoop]: Abstraction has 81694 states and 94854 transitions. [2023-12-25 09:23:02,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.945945945945946) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:02,252 INFO L276 IsEmpty]: Start isEmpty. Operand 81694 states and 94854 transitions. [2023-12-25 09:23:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 09:23:02,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:02,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:02,259 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 (56)] Forceful destruction successful, exit code 0 [2023-12-25 09:23:02,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:02,457 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:02,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash -17448283, now seen corresponding path program 1 times [2023-12-25 09:23:02,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:02,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985520938] [2023-12-25 09:23:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:02,458 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 [2023-12-25 09:23:02,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:02,459 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-25 09:23:02,459 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 (57)] Waiting until timeout for monitored process [2023-12-25 09:23:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:02,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-25 09:23:02,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:23:05,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:05,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:05,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985520938] [2023-12-25 09:23:05,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985520938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:05,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:05,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-25 09:23:05,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707284429] [2023-12-25 09:23:05,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:05,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-25 09:23:05,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:05,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-25 09:23:05,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2023-12-25 09:23:05,405 INFO L87 Difference]: Start difference. First operand 81694 states and 94854 transitions. Second operand has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:11,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:11,216 INFO L93 Difference]: Finished difference Result 109150 states and 126466 transitions. [2023-12-25 09:23:11,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 09:23:11,216 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-25 09:23:11,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:11,329 INFO L225 Difference]: With dead ends: 109150 [2023-12-25 09:23:11,329 INFO L226 Difference]: Without dead ends: 101276 [2023-12-25 09:23:11,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=208, Invalid=1274, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 09:23:11,361 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1081 mSDsluCounter, 5244 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 5595 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:11,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 5595 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 09:23:11,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101276 states. [2023-12-25 09:23:12,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101276 to 81683. [2023-12-25 09:23:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81683 states, 81682 states have (on average 1.1610758796307632) internal successors, (94839), 81682 states have internal predecessors, (94839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:12,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81683 states to 81683 states and 94839 transitions. [2023-12-25 09:23:12,380 INFO L78 Accepts]: Start accepts. Automaton has 81683 states and 94839 transitions. Word has length 116 [2023-12-25 09:23:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:12,381 INFO L495 AbstractCegarLoop]: Abstraction has 81683 states and 94839 transitions. [2023-12-25 09:23:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:12,381 INFO L276 IsEmpty]: Start isEmpty. Operand 81683 states and 94839 transitions. [2023-12-25 09:23:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 09:23:12,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:12,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:12,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2023-12-25 09:23:12,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:12,586 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:12,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1855041318, now seen corresponding path program 1 times [2023-12-25 09:23:12,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:12,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321607547] [2023-12-25 09:23:12,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:12,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:12,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:12,589 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-25 09:23:12,598 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 (58)] Waiting until timeout for monitored process [2023-12-25 09:23:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:12,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-25 09:23:12,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:23:15,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:15,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:15,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321607547] [2023-12-25 09:23:15,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321607547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:15,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:15,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-12-25 09:23:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94715379] [2023-12-25 09:23:15,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:15,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 09:23:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 09:23:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:23:15,093 INFO L87 Difference]: Start difference. First operand 81683 states and 94839 transitions. Second operand has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:21,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:21,306 INFO L93 Difference]: Finished difference Result 125060 states and 145282 transitions. [2023-12-25 09:23:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 09:23:21,306 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-25 09:23:21,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:21,523 INFO L225 Difference]: With dead ends: 125060 [2023-12-25 09:23:21,524 INFO L226 Difference]: Without dead ends: 116304 [2023-12-25 09:23:21,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=208, Invalid=1274, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 09:23:21,546 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1425 mSDsluCounter, 5473 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:21,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 5842 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 09:23:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116304 states. [2023-12-25 09:23:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116304 to 81603. [2023-12-25 09:23:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81603 states, 81602 states have (on average 1.161013210460528) internal successors, (94741), 81602 states have internal predecessors, (94741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81603 states to 81603 states and 94741 transitions. [2023-12-25 09:23:22,370 INFO L78 Accepts]: Start accepts. Automaton has 81603 states and 94741 transitions. Word has length 116 [2023-12-25 09:23:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:22,371 INFO L495 AbstractCegarLoop]: Abstraction has 81603 states and 94741 transitions. [2023-12-25 09:23:22,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 81603 states and 94741 transitions. [2023-12-25 09:23:22,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 09:23:22,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:22,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2023-12-25 09:23:22,386 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 (58)] Forceful destruction successful, exit code 0 [2023-12-25 09:23:22,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:22,583 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:22,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1082130991, now seen corresponding path program 1 times [2023-12-25 09:23:22,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:22,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129702261] [2023-12-25 09:23:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:22,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:22,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:22,586 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-25 09:23:22,586 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 (59)] Waiting until timeout for monitored process [2023-12-25 09:23:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:22,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:23:22,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 27 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 09:23:23,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:23:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 27 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 09:23:23,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:23,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129702261] [2023-12-25 09:23:23,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129702261] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:23:23,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:23:23,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:23:23,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287304951] [2023-12-25 09:23:23,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:23:23,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:23:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:23:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:23:23,972 INFO L87 Difference]: Start difference. First operand 81603 states and 94741 transitions. Second operand has 16 states, 16 states have (on average 15.4375) internal successors, (247), 15 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:27,334 INFO L93 Difference]: Finished difference Result 210381 states and 242665 transitions. [2023-12-25 09:23:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-25 09:23:27,334 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.4375) internal successors, (247), 15 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 09:23:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:27,495 INFO L225 Difference]: With dead ends: 210381 [2023-12-25 09:23:27,495 INFO L226 Difference]: Without dead ends: 148579 [2023-12-25 09:23:27,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1066, Invalid=3490, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 09:23:27,546 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 2175 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:27,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 2147 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:23:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148579 states. [2023-12-25 09:23:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148579 to 80955. [2023-12-25 09:23:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80955 states, 80954 states have (on average 1.1581391901573734) internal successors, (93756), 80954 states have internal predecessors, (93756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80955 states to 80955 states and 93756 transitions. [2023-12-25 09:23:28,787 INFO L78 Accepts]: Start accepts. Automaton has 80955 states and 93756 transitions. Word has length 139 [2023-12-25 09:23:28,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:28,787 INFO L495 AbstractCegarLoop]: Abstraction has 80955 states and 93756 transitions. [2023-12-25 09:23:28,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.4375) internal successors, (247), 15 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 80955 states and 93756 transitions. [2023-12-25 09:23:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 09:23:28,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:28,799 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:28,803 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 (59)] Ended with exit code 0 [2023-12-25 09:23:29,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:29,001 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:29,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1225353830, now seen corresponding path program 1 times [2023-12-25 09:23:29,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:29,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980518679] [2023-12-25 09:23:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:29,002 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 [2023-12-25 09:23:29,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:29,003 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-25 09:23:29,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2023-12-25 09:23:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:29,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:23:29,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 09:23:29,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:29,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980518679] [2023-12-25 09:23:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980518679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:29,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:23:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017970839] [2023-12-25 09:23:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:29,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:23:29,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:29,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:23:29,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:23:29,185 INFO L87 Difference]: Start difference. First operand 80955 states and 93756 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:29,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:29,626 INFO L93 Difference]: Finished difference Result 114462 states and 132663 transitions. [2023-12-25 09:23:29,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:23:29,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 09:23:29,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:29,662 INFO L225 Difference]: With dead ends: 114462 [2023-12-25 09:23:29,662 INFO L226 Difference]: Without dead ends: 34377 [2023-12-25 09:23:29,683 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 [2023-12-25 09:23:29,684 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 109 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:29,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 349 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:23:29,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34377 states. [2023-12-25 09:23:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34377 to 33469. [2023-12-25 09:23:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33469 states, 33468 states have (on average 1.1306621250149396) internal successors, (37841), 33468 states have internal predecessors, (37841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33469 states to 33469 states and 37841 transitions. [2023-12-25 09:23:29,946 INFO L78 Accepts]: Start accepts. Automaton has 33469 states and 37841 transitions. Word has length 139 [2023-12-25 09:23:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:29,946 INFO L495 AbstractCegarLoop]: Abstraction has 33469 states and 37841 transitions. [2023-12-25 09:23:29,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 33469 states and 37841 transitions. [2023-12-25 09:23:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 09:23:29,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:29,952 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:29,955 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 (60)] Forceful destruction successful, exit code 0 [2023-12-25 09:23:30,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:30,152 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:30,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1284480272, now seen corresponding path program 1 times [2023-12-25 09:23:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:30,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376382418] [2023-12-25 09:23:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:30,154 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 [2023-12-25 09:23:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:30,155 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-25 09:23:30,155 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 (61)] Waiting until timeout for monitored process [2023-12-25 09:23:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:30,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 09:23:30,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-12-25 09:23:31,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:31,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:31,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376382418] [2023-12-25 09:23:31,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376382418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:31,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:31,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 09:23:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089341202] [2023-12-25 09:23:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:31,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 09:23:31,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 09:23:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:23:31,042 INFO L87 Difference]: Start difference. First operand 33469 states and 37841 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:31,891 INFO L93 Difference]: Finished difference Result 50353 states and 56999 transitions. [2023-12-25 09:23:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:23:31,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-25 09:23:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:31,930 INFO L225 Difference]: With dead ends: 50353 [2023-12-25 09:23:31,931 INFO L226 Difference]: Without dead ends: 38745 [2023-12-25 09:23:31,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:23:31,945 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1370 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:31,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1975 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:23:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38745 states. [2023-12-25 09:23:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38745 to 33469. [2023-12-25 09:23:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33469 states, 33468 states have (on average 1.1305724871519063) internal successors, (37838), 33468 states have internal predecessors, (37838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33469 states to 33469 states and 37838 transitions. [2023-12-25 09:23:32,344 INFO L78 Accepts]: Start accepts. Automaton has 33469 states and 37838 transitions. Word has length 140 [2023-12-25 09:23:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:32,344 INFO L495 AbstractCegarLoop]: Abstraction has 33469 states and 37838 transitions. [2023-12-25 09:23:32,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 33469 states and 37838 transitions. [2023-12-25 09:23:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 09:23:32,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:32,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:32,354 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 (61)] Ended with exit code 0 [2023-12-25 09:23:32,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:32,551 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:32,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1344854064, now seen corresponding path program 1 times [2023-12-25 09:23:32,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:32,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536505106] [2023-12-25 09:23:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:32,553 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 [2023-12-25 09:23:32,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:32,554 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2023-12-25 09:23:32,559 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 (62)] Waiting until timeout for monitored process [2023-12-25 09:23:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:32,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:23:32,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 09:23:33,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:33,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:33,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536505106] [2023-12-25 09:23:33,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536505106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:33,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:33,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 09:23:33,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690141494] [2023-12-25 09:23:33,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:33,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:23:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:23:33,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:23:33,175 INFO L87 Difference]: Start difference. First operand 33469 states and 37838 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:33,891 INFO L93 Difference]: Finished difference Result 56376 states and 63781 transitions. [2023-12-25 09:23:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:23:33,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-25 09:23:33,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:33,942 INFO L225 Difference]: With dead ends: 56376 [2023-12-25 09:23:33,942 INFO L226 Difference]: Without dead ends: 49360 [2023-12-25 09:23:33,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:23:33,959 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1307 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:33,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1747 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:23:33,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49360 states. [2023-12-25 09:23:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49360 to 34422. [2023-12-25 09:23:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34422 states, 34421 states have (on average 1.129775427791174) internal successors, (38888), 34421 states have internal predecessors, (38888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34422 states to 34422 states and 38888 transitions. [2023-12-25 09:23:34,370 INFO L78 Accepts]: Start accepts. Automaton has 34422 states and 38888 transitions. Word has length 140 [2023-12-25 09:23:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:34,370 INFO L495 AbstractCegarLoop]: Abstraction has 34422 states and 38888 transitions. [2023-12-25 09:23:34,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 34422 states and 38888 transitions. [2023-12-25 09:23:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 09:23:34,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:34,377 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:34,380 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 (62)] Ended with exit code 0 [2023-12-25 09:23:34,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:34,580 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:34,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash -549423178, now seen corresponding path program 1 times [2023-12-25 09:23:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:34,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92823426] [2023-12-25 09:23:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:34,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:34,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:34,586 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2023-12-25 09:23:34,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2023-12-25 09:23:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:34,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 09:23:34,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-25 09:23:35,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:35,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:35,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92823426] [2023-12-25 09:23:35,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92823426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:35,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:35,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 09:23:35,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530337270] [2023-12-25 09:23:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:35,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 09:23:35,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 09:23:35,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:23:35,318 INFO L87 Difference]: Start difference. First operand 34422 states and 38888 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:36,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:36,187 INFO L93 Difference]: Finished difference Result 44244 states and 50176 transitions. [2023-12-25 09:23:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:23:36,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-25 09:23:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:36,227 INFO L225 Difference]: With dead ends: 44244 [2023-12-25 09:23:36,227 INFO L226 Difference]: Without dead ends: 41262 [2023-12-25 09:23:36,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:23:36,239 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1175 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:36,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 2065 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:23:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41262 states. [2023-12-25 09:23:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41262 to 34402. [2023-12-25 09:23:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34402 states, 34401 states have (on average 1.1297055318159357) internal successors, (38863), 34401 states have internal predecessors, (38863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34402 states to 34402 states and 38863 transitions. [2023-12-25 09:23:36,699 INFO L78 Accepts]: Start accepts. Automaton has 34402 states and 38863 transitions. Word has length 140 [2023-12-25 09:23:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:36,699 INFO L495 AbstractCegarLoop]: Abstraction has 34402 states and 38863 transitions. [2023-12-25 09:23:36,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 34402 states and 38863 transitions. [2023-12-25 09:23:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 09:23:36,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:36,706 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:36,709 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 (63)] Ended with exit code 0 [2023-12-25 09:23:36,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:36,907 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:36,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash 71632948, now seen corresponding path program 1 times [2023-12-25 09:23:36,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:36,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425518361] [2023-12-25 09:23:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:36,908 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 [2023-12-25 09:23:36,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:36,909 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2023-12-25 09:23:36,913 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 (64)] Waiting until timeout for monitored process [2023-12-25 09:23:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:37,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:23:37,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 52 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 09:23:37,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:23:38,240 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 52 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 09:23:38,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:38,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425518361] [2023-12-25 09:23:38,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425518361] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:23:38,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:23:38,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 09:23:38,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012247407] [2023-12-25 09:23:38,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:23:38,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 09:23:38,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:38,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 09:23:38,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:23:38,242 INFO L87 Difference]: Start difference. First operand 34402 states and 38863 transitions. Second operand has 24 states, 24 states have (on average 9.083333333333334) internal successors, (218), 23 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:48,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:48,403 INFO L93 Difference]: Finished difference Result 96504 states and 108435 transitions. [2023-12-25 09:23:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-12-25 09:23:48,404 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.083333333333334) internal successors, (218), 23 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-25 09:23:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:48,475 INFO L225 Difference]: With dead ends: 96504 [2023-12-25 09:23:48,475 INFO L226 Difference]: Without dead ends: 82586 [2023-12-25 09:23:48,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7264 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3045, Invalid=18125, Unknown=0, NotChecked=0, Total=21170 [2023-12-25 09:23:48,482 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 4564 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4564 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 4614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:48,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4564 Valid, 5522 Invalid, 4614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-25 09:23:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82586 states. [2023-12-25 09:23:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82586 to 35491. [2023-12-25 09:23:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35491 states, 35490 states have (on average 1.1251901944209637) internal successors, (39933), 35490 states have internal predecessors, (39933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35491 states to 35491 states and 39933 transitions. [2023-12-25 09:23:48,891 INFO L78 Accepts]: Start accepts. Automaton has 35491 states and 39933 transitions. Word has length 143 [2023-12-25 09:23:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:48,892 INFO L495 AbstractCegarLoop]: Abstraction has 35491 states and 39933 transitions. [2023-12-25 09:23:48,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.083333333333334) internal successors, (218), 23 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 35491 states and 39933 transitions. [2023-12-25 09:23:48,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 09:23:48,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:48,898 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:48,902 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 (64)] Forceful destruction successful, exit code 0 [2023-12-25 09:23:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:49,102 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:49,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2029862613, now seen corresponding path program 1 times [2023-12-25 09:23:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471278483] [2023-12-25 09:23:49,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:49,103 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 [2023-12-25 09:23:49,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:49,105 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2023-12-25 09:23:49,106 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 (65)] Waiting until timeout for monitored process [2023-12-25 09:23:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:49,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 09:23:49,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:50,044 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 09:23:50,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:23:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 09:23:50,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471278483] [2023-12-25 09:23:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471278483] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:23:50,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:23:50,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-25 09:23:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556115520] [2023-12-25 09:23:50,300 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:23:50,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 09:23:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 09:23:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-12-25 09:23:50,301 INFO L87 Difference]: Start difference. First operand 35491 states and 39933 transitions. Second operand has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:53,921 INFO L93 Difference]: Finished difference Result 71933 states and 80895 transitions. [2023-12-25 09:23:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-25 09:23:53,921 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-25 09:23:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:53,985 INFO L225 Difference]: With dead ends: 71933 [2023-12-25 09:23:53,985 INFO L226 Difference]: Without dead ends: 60420 [2023-12-25 09:23:54,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=782, Invalid=2758, Unknown=0, NotChecked=0, Total=3540 [2023-12-25 09:23:54,005 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 3043 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:54,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 2876 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 09:23:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60420 states. [2023-12-25 09:23:54,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60420 to 36634. [2023-12-25 09:23:54,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36634 states, 36633 states have (on average 1.125078481150875) internal successors, (41215), 36633 states have internal predecessors, (41215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36634 states to 36634 states and 41215 transitions. [2023-12-25 09:23:54,465 INFO L78 Accepts]: Start accepts. Automaton has 36634 states and 41215 transitions. Word has length 143 [2023-12-25 09:23:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:54,466 INFO L495 AbstractCegarLoop]: Abstraction has 36634 states and 41215 transitions. [2023-12-25 09:23:54,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 36634 states and 41215 transitions. [2023-12-25 09:23:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 09:23:54,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:54,473 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:23:54,476 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 (65)] Ended with exit code 0 [2023-12-25 09:23:54,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:54,673 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:54,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1405611293, now seen corresponding path program 1 times [2023-12-25 09:23:54,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:54,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134972509] [2023-12-25 09:23:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:54,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:54,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:54,675 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2023-12-25 09:23:54,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2023-12-25 09:23:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:54,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:23:54,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 09:23:55,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:23:55,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134972509] [2023-12-25 09:23:55,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134972509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:23:55,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:23:55,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 09:23:55,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649413152] [2023-12-25 09:23:55,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:23:55,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 09:23:55,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:55,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 09:23:55,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:23:55,453 INFO L87 Difference]: Start difference. First operand 36634 states and 41215 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:23:57,817 INFO L93 Difference]: Finished difference Result 43956 states and 49598 transitions. [2023-12-25 09:23:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:23:57,818 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-25 09:23:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:23:57,856 INFO L225 Difference]: With dead ends: 43956 [2023-12-25 09:23:57,856 INFO L226 Difference]: Without dead ends: 41394 [2023-12-25 09:23:57,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2023-12-25 09:23:57,868 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1359 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:23:57,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 1975 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 09:23:57,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41394 states. [2023-12-25 09:23:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41394 to 36646. [2023-12-25 09:23:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36646 states, 36645 states have (on average 1.125010233319689) internal successors, (41226), 36645 states have internal predecessors, (41226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36646 states to 36646 states and 41226 transitions. [2023-12-25 09:23:58,183 INFO L78 Accepts]: Start accepts. Automaton has 36646 states and 41226 transitions. Word has length 143 [2023-12-25 09:23:58,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:23:58,183 INFO L495 AbstractCegarLoop]: Abstraction has 36646 states and 41226 transitions. [2023-12-25 09:23:58,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:23:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 36646 states and 41226 transitions. [2023-12-25 09:23:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 09:23:58,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:23:58,190 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2023-12-25 09:23:58,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2023-12-25 09:23:58,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:23:58,390 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:23:58,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:23:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash -879336953, now seen corresponding path program 1 times [2023-12-25 09:23:58,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:23:58,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123856076] [2023-12-25 09:23:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:23:58,391 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 [2023-12-25 09:23:58,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:23:58,392 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2023-12-25 09:23:58,393 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 (67)] Waiting until timeout for monitored process [2023-12-25 09:23:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:23:58,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 09:23:58,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:23:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:23:58,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:23:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:23:59,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:23:59,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123856076] [2023-12-25 09:23:59,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123856076] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:23:59,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:23:59,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2023-12-25 09:23:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514687146] [2023-12-25 09:23:59,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:23:59,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:23:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:23:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:23:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:23:59,146 INFO L87 Difference]: Start difference. First operand 36646 states and 41226 transitions. Second operand has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:00,180 INFO L93 Difference]: Finished difference Result 66614 states and 75247 transitions. [2023-12-25 09:24:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 09:24:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 09:24:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:00,234 INFO L225 Difference]: With dead ends: 66614 [2023-12-25 09:24:00,234 INFO L226 Difference]: Without dead ends: 52064 [2023-12-25 09:24:00,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 269 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 5 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2023-12-25 09:24:00,253 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 731 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:00,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 3382 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:24:00,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52064 states. [2023-12-25 09:24:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52064 to 38575. [2023-12-25 09:24:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38575 states, 38574 states have (on average 1.1253694198164568) internal successors, (43410), 38574 states have internal predecessors, (43410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38575 states to 38575 states and 43410 transitions. [2023-12-25 09:24:00,738 INFO L78 Accepts]: Start accepts. Automaton has 38575 states and 43410 transitions. Word has length 144 [2023-12-25 09:24:00,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:00,738 INFO L495 AbstractCegarLoop]: Abstraction has 38575 states and 43410 transitions. [2023-12-25 09:24:00,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:00,739 INFO L276 IsEmpty]: Start isEmpty. Operand 38575 states and 43410 transitions. [2023-12-25 09:24:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 09:24:00,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:00,745 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:00,748 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 (67)] Ended with exit code 0 [2023-12-25 09:24:00,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:00,946 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:00,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:00,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1573206822, now seen corresponding path program 1 times [2023-12-25 09:24:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207106039] [2023-12-25 09:24:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:00,947 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 [2023-12-25 09:24:00,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:00,948 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2023-12-25 09:24:00,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2023-12-25 09:24:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:01,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 09:24:01,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 61 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:24:01,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 61 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:24:01,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207106039] [2023-12-25 09:24:01,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207106039] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:01,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2023-12-25 09:24:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056531790] [2023-12-25 09:24:01,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:01,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:24:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:24:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:24:01,498 INFO L87 Difference]: Start difference. First operand 38575 states and 43410 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:02,421 INFO L93 Difference]: Finished difference Result 61306 states and 68958 transitions. [2023-12-25 09:24:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 09:24:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 09:24:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:02,475 INFO L225 Difference]: With dead ends: 61306 [2023-12-25 09:24:02,476 INFO L226 Difference]: Without dead ends: 54487 [2023-12-25 09:24:02,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2023-12-25 09:24:02,490 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1432 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:02,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 3221 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:24:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54487 states. [2023-12-25 09:24:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54487 to 39748. [2023-12-25 09:24:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39748 states, 39747 states have (on average 1.123254585251717) internal successors, (44646), 39747 states have internal predecessors, (44646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39748 states to 39748 states and 44646 transitions. [2023-12-25 09:24:03,024 INFO L78 Accepts]: Start accepts. Automaton has 39748 states and 44646 transitions. Word has length 144 [2023-12-25 09:24:03,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:03,024 INFO L495 AbstractCegarLoop]: Abstraction has 39748 states and 44646 transitions. [2023-12-25 09:24:03,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 39748 states and 44646 transitions. [2023-12-25 09:24:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 09:24:03,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:03,031 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:03,034 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 (68)] Forceful destruction successful, exit code 0 [2023-12-25 09:24:03,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:03,232 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:03,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash 928033878, now seen corresponding path program 1 times [2023-12-25 09:24:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:03,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780266503] [2023-12-25 09:24:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:03,233 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 [2023-12-25 09:24:03,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:03,234 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2023-12-25 09:24:03,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2023-12-25 09:24:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:03,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 09:24:03,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:03,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:03,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:03,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780266503] [2023-12-25 09:24:03,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780266503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:03,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:03,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2023-12-25 09:24:03,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020842047] [2023-12-25 09:24:03,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:03,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:24:03,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:03,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:24:03,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:24:03,934 INFO L87 Difference]: Start difference. First operand 39748 states and 44646 transitions. Second operand has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:05,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:05,098 INFO L93 Difference]: Finished difference Result 58187 states and 65474 transitions. [2023-12-25 09:24:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 09:24:05,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 09:24:05,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:05,159 INFO L225 Difference]: With dead ends: 58187 [2023-12-25 09:24:05,159 INFO L226 Difference]: Without dead ends: 51323 [2023-12-25 09:24:05,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 269 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 5 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2023-12-25 09:24:05,170 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 736 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:05,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 4346 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:24:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51323 states. [2023-12-25 09:24:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51323 to 40440. [2023-12-25 09:24:05,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40440 states, 40439 states have (on average 1.1217883726105986) internal successors, (45364), 40439 states have internal predecessors, (45364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 45364 transitions. [2023-12-25 09:24:05,649 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 45364 transitions. Word has length 144 [2023-12-25 09:24:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:05,650 INFO L495 AbstractCegarLoop]: Abstraction has 40440 states and 45364 transitions. [2023-12-25 09:24:05,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 45364 transitions. [2023-12-25 09:24:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 09:24:05,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:05,848 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:05,854 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 (69)] Forceful destruction successful, exit code 0 [2023-12-25 09:24:06,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:06,055 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:06,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1372021796, now seen corresponding path program 1 times [2023-12-25 09:24:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000566504] [2023-12-25 09:24:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:06,058 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 [2023-12-25 09:24:06,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:06,060 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2023-12-25 09:24:06,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2023-12-25 09:24:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:06,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:24:06,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:24:07,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:24:07,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:07,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000566504] [2023-12-25 09:24:07,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000566504] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:07,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:07,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 09:24:07,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031845723] [2023-12-25 09:24:07,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:07,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:24:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:24:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:24:07,381 INFO L87 Difference]: Start difference. First operand 40440 states and 45364 transitions. Second operand has 18 states, 18 states have (on average 14.055555555555555) internal successors, (253), 17 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:11,145 INFO L93 Difference]: Finished difference Result 94082 states and 105625 transitions. [2023-12-25 09:24:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 09:24:11,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.055555555555555) internal successors, (253), 17 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-25 09:24:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:11,222 INFO L225 Difference]: With dead ends: 94082 [2023-12-25 09:24:11,222 INFO L226 Difference]: Without dead ends: 74752 [2023-12-25 09:24:11,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1056, Invalid=4056, Unknown=0, NotChecked=0, Total=5112 [2023-12-25 09:24:11,245 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 2954 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:11,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 2518 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 09:24:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74752 states. [2023-12-25 09:24:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74752 to 34277. [2023-12-25 09:24:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34277 states, 34276 states have (on average 1.1181001283697047) internal successors, (38324), 34276 states have internal predecessors, (38324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34277 states to 34277 states and 38324 transitions. [2023-12-25 09:24:11,768 INFO L78 Accepts]: Start accepts. Automaton has 34277 states and 38324 transitions. Word has length 147 [2023-12-25 09:24:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:11,768 INFO L495 AbstractCegarLoop]: Abstraction has 34277 states and 38324 transitions. [2023-12-25 09:24:11,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.055555555555555) internal successors, (253), 17 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 34277 states and 38324 transitions. [2023-12-25 09:24:11,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 09:24:11,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:11,774 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:11,779 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 (70)] Ended with exit code 0 [2023-12-25 09:24:11,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:11,974 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:11,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2002939178, now seen corresponding path program 1 times [2023-12-25 09:24:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:11,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852057747] [2023-12-25 09:24:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:11,975 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 [2023-12-25 09:24:11,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:11,976 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2023-12-25 09:24:11,977 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 (71)] Waiting until timeout for monitored process [2023-12-25 09:24:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:12,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:24:12,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 61 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:24:12,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 61 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:24:13,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:13,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852057747] [2023-12-25 09:24:13,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852057747] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:13,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:13,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 09:24:13,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822565294] [2023-12-25 09:24:13,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:13,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:24:13,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:13,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:24:13,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:24:13,199 INFO L87 Difference]: Start difference. First operand 34277 states and 38324 transitions. Second operand has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:15,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:15,144 INFO L93 Difference]: Finished difference Result 60555 states and 67475 transitions. [2023-12-25 09:24:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-25 09:24:15,144 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-25 09:24:15,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:15,178 INFO L225 Difference]: With dead ends: 60555 [2023-12-25 09:24:15,178 INFO L226 Difference]: Without dead ends: 35539 [2023-12-25 09:24:15,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=396, Invalid=1244, Unknown=0, NotChecked=0, Total=1640 [2023-12-25 09:24:15,195 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1624 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:15,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 2006 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:24:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35539 states. [2023-12-25 09:24:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35539 to 21560. [2023-12-25 09:24:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21560 states, 21559 states have (on average 1.1019991650818683) internal successors, (23758), 21559 states have internal predecessors, (23758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21560 states to 21560 states and 23758 transitions. [2023-12-25 09:24:15,477 INFO L78 Accepts]: Start accepts. Automaton has 21560 states and 23758 transitions. Word has length 147 [2023-12-25 09:24:15,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:15,477 INFO L495 AbstractCegarLoop]: Abstraction has 21560 states and 23758 transitions. [2023-12-25 09:24:15,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand 21560 states and 23758 transitions. [2023-12-25 09:24:15,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 09:24:15,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:15,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:15,485 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 (71)] Forceful destruction successful, exit code 0 [2023-12-25 09:24:15,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:15,683 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:15,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:15,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1378533137, now seen corresponding path program 1 times [2023-12-25 09:24:15,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:15,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022460721] [2023-12-25 09:24:15,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:15,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:15,685 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2023-12-25 09:24:15,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2023-12-25 09:24:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:15,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:24:15,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:24:16,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:24:17,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022460721] [2023-12-25 09:24:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022460721] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:17,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 09:24:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582509400] [2023-12-25 09:24:17,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:17,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 09:24:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 09:24:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:24:17,218 INFO L87 Difference]: Start difference. First operand 21560 states and 23758 transitions. Second operand has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 25 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:29,730 INFO L93 Difference]: Finished difference Result 48715 states and 53715 transitions. [2023-12-25 09:24:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-12-25 09:24:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 25 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-25 09:24:29,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:29,768 INFO L225 Difference]: With dead ends: 48715 [2023-12-25 09:24:29,768 INFO L226 Difference]: Without dead ends: 41803 [2023-12-25 09:24:29,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6812 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=3479, Invalid=17401, Unknown=0, NotChecked=0, Total=20880 [2023-12-25 09:24:29,777 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2924 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 5447 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6083 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 5447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:29,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 6083 Invalid, 5489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 5447 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-25 09:24:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41803 states. [2023-12-25 09:24:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41803 to 21221. [2023-12-25 09:24:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21221 states, 21220 states have (on average 1.0988218661639961) internal successors, (23317), 21220 states have internal predecessors, (23317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:30,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21221 states to 21221 states and 23317 transitions. [2023-12-25 09:24:30,011 INFO L78 Accepts]: Start accepts. Automaton has 21221 states and 23317 transitions. Word has length 147 [2023-12-25 09:24:30,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:30,011 INFO L495 AbstractCegarLoop]: Abstraction has 21221 states and 23317 transitions. [2023-12-25 09:24:30,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 25 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:30,011 INFO L276 IsEmpty]: Start isEmpty. Operand 21221 states and 23317 transitions. [2023-12-25 09:24:30,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 09:24:30,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:30,016 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:30,020 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 (72)] Ended with exit code 0 [2023-12-25 09:24:30,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:30,217 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:30,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:30,217 INFO L85 PathProgramCache]: Analyzing trace with hash -541166196, now seen corresponding path program 1 times [2023-12-25 09:24:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:30,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166181921] [2023-12-25 09:24:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:30,218 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 [2023-12-25 09:24:30,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:30,220 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2023-12-25 09:24:30,221 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 (73)] Waiting until timeout for monitored process [2023-12-25 09:24:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:30,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:24:30,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:31,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:31,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:31,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166181921] [2023-12-25 09:24:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166181921] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:31,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 09:24:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787142086] [2023-12-25 09:24:31,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:31,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:24:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:31,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:24:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:24:31,379 INFO L87 Difference]: Start difference. First operand 21221 states and 23317 transitions. Second operand has 18 states, 18 states have (on average 14.38888888888889) internal successors, (259), 17 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:34,093 INFO L93 Difference]: Finished difference Result 26896 states and 29628 transitions. [2023-12-25 09:24:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-25 09:24:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.38888888888889) internal successors, (259), 17 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-25 09:24:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:34,113 INFO L225 Difference]: With dead ends: 26896 [2023-12-25 09:24:34,114 INFO L226 Difference]: Without dead ends: 23732 [2023-12-25 09:24:34,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2023-12-25 09:24:34,121 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 1873 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:34,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 2538 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 09:24:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23732 states. [2023-12-25 09:24:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23732 to 20827. [2023-12-25 09:24:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20827 states, 20826 states have (on average 1.0977624123691538) internal successors, (22862), 20826 states have internal predecessors, (22862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20827 states to 20827 states and 22862 transitions. [2023-12-25 09:24:34,288 INFO L78 Accepts]: Start accepts. Automaton has 20827 states and 22862 transitions. Word has length 147 [2023-12-25 09:24:34,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:34,288 INFO L495 AbstractCegarLoop]: Abstraction has 20827 states and 22862 transitions. [2023-12-25 09:24:34,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.38888888888889) internal successors, (259), 17 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 20827 states and 22862 transitions. [2023-12-25 09:24:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 09:24:34,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:34,294 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:34,297 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 (73)] Ended with exit code 0 [2023-12-25 09:24:34,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:34,494 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:34,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2009660047, now seen corresponding path program 1 times [2023-12-25 09:24:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:34,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534304674] [2023-12-25 09:24:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:34,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:34,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:34,496 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2023-12-25 09:24:34,497 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 (74)] Waiting until timeout for monitored process [2023-12-25 09:24:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:34,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:24:34,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:24:35,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:24:35,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534304674] [2023-12-25 09:24:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534304674] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:35,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:35,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 09:24:35,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647687119] [2023-12-25 09:24:35,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:35,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 09:24:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:35,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 09:24:35,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:24:35,914 INFO L87 Difference]: Start difference. First operand 20827 states and 22862 transitions. Second operand has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:43,579 INFO L93 Difference]: Finished difference Result 28318 states and 31099 transitions. [2023-12-25 09:24:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-12-25 09:24:43,580 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-25 09:24:43,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:43,605 INFO L225 Difference]: With dead ends: 28318 [2023-12-25 09:24:43,606 INFO L226 Difference]: Without dead ends: 26143 [2023-12-25 09:24:43,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3085 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2015, Invalid=9115, Unknown=0, NotChecked=0, Total=11130 [2023-12-25 09:24:43,614 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 3675 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 3868 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:43,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 4403 Invalid, 3907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3868 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 09:24:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26143 states. [2023-12-25 09:24:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26143 to 20827. [2023-12-25 09:24:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20827 states, 20826 states have (on average 1.0971381926438106) internal successors, (22849), 20826 states have internal predecessors, (22849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20827 states to 20827 states and 22849 transitions. [2023-12-25 09:24:43,784 INFO L78 Accepts]: Start accepts. Automaton has 20827 states and 22849 transitions. Word has length 147 [2023-12-25 09:24:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:43,784 INFO L495 AbstractCegarLoop]: Abstraction has 20827 states and 22849 transitions. [2023-12-25 09:24:43,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.576923076923077) internal successors, (275), 25 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 20827 states and 22849 transitions. [2023-12-25 09:24:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 09:24:43,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:43,789 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:43,792 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 (74)] Ended with exit code 0 [2023-12-25 09:24:43,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:43,989 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:43,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash 57449118, now seen corresponding path program 1 times [2023-12-25 09:24:43,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:43,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237223047] [2023-12-25 09:24:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:43,990 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 [2023-12-25 09:24:43,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:43,991 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2023-12-25 09:24:43,992 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 (75)] Waiting until timeout for monitored process [2023-12-25 09:24:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:44,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 09:24:44,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:45,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:24:45,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:45,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237223047] [2023-12-25 09:24:45,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237223047] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:45,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:45,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-12-25 09:24:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444517873] [2023-12-25 09:24:45,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:45,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-25 09:24:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-25 09:24:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-25 09:24:45,689 INFO L87 Difference]: Start difference. First operand 20827 states and 22849 transitions. Second operand has 27 states, 27 states have (on average 9.592592592592593) internal successors, (259), 27 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:50,432 INFO L93 Difference]: Finished difference Result 36258 states and 39740 transitions. [2023-12-25 09:24:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-25 09:24:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.592592592592593) internal successors, (259), 27 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2023-12-25 09:24:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:50,458 INFO L225 Difference]: With dead ends: 36258 [2023-12-25 09:24:50,458 INFO L226 Difference]: Without dead ends: 32947 [2023-12-25 09:24:50,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=727, Invalid=4103, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 09:24:50,462 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 3446 mSDsluCounter, 8709 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3446 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:50,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3446 Valid, 9220 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 09:24:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32947 states. [2023-12-25 09:24:50,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32947 to 20942. [2023-12-25 09:24:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20942 states, 20941 states have (on average 1.0969390191490378) internal successors, (22971), 20941 states have internal predecessors, (22971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20942 states to 20942 states and 22971 transitions. [2023-12-25 09:24:50,654 INFO L78 Accepts]: Start accepts. Automaton has 20942 states and 22971 transitions. Word has length 148 [2023-12-25 09:24:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:24:50,655 INFO L495 AbstractCegarLoop]: Abstraction has 20942 states and 22971 transitions. [2023-12-25 09:24:50,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.592592592592593) internal successors, (259), 27 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 20942 states and 22971 transitions. [2023-12-25 09:24:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 09:24:50,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:24:50,669 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:24:50,679 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 (75)] Forceful destruction successful, exit code 0 [2023-12-25 09:24:50,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:24:50,874 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:24:50,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:24:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash -685948338, now seen corresponding path program 1 times [2023-12-25 09:24:50,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:24:50,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645718051] [2023-12-25 09:24:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:24:50,875 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 [2023-12-25 09:24:50,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:24:50,876 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2023-12-25 09:24:50,895 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 (76)] Waiting until timeout for monitored process [2023-12-25 09:24:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:24:51,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 09:24:51,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:24:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:24:52,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:24:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 09:24:52,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:24:52,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645718051] [2023-12-25 09:24:52,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645718051] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:24:52,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:24:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2023-12-25 09:24:52,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456299226] [2023-12-25 09:24:52,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:24:52,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 09:24:52,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:24:52,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 09:24:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:24:52,559 INFO L87 Difference]: Start difference. First operand 20942 states and 22971 transitions. Second operand has 24 states, 24 states have (on average 10.291666666666666) internal successors, (247), 24 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:24:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:24:59,852 INFO L93 Difference]: Finished difference Result 48122 states and 53093 transitions. [2023-12-25 09:24:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-12-25 09:24:59,852 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.291666666666666) internal successors, (247), 24 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2023-12-25 09:24:59,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:24:59,893 INFO L225 Difference]: With dead ends: 48122 [2023-12-25 09:24:59,893 INFO L226 Difference]: Without dead ends: 44198 [2023-12-25 09:24:59,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2627 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1687, Invalid=7433, Unknown=0, NotChecked=0, Total=9120 [2023-12-25 09:24:59,906 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 3998 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3998 SdHoareTripleChecker+Valid, 7484 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:24:59,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3998 Valid, 7484 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:24:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44198 states. [2023-12-25 09:25:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44198 to 21111. [2023-12-25 09:25:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21111 states, 21110 states have (on average 1.096541923259119) internal successors, (23148), 21110 states have internal predecessors, (23148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21111 states to 21111 states and 23148 transitions. [2023-12-25 09:25:00,155 INFO L78 Accepts]: Start accepts. Automaton has 21111 states and 23148 transitions. Word has length 148 [2023-12-25 09:25:00,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:00,155 INFO L495 AbstractCegarLoop]: Abstraction has 21111 states and 23148 transitions. [2023-12-25 09:25:00,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.291666666666666) internal successors, (247), 24 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:00,156 INFO L276 IsEmpty]: Start isEmpty. Operand 21111 states and 23148 transitions. [2023-12-25 09:25:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 09:25:00,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:00,160 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:00,163 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 (76)] Ended with exit code 0 [2023-12-25 09:25:00,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:00,360 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:00,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -117314442, now seen corresponding path program 1 times [2023-12-25 09:25:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:00,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562730534] [2023-12-25 09:25:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:00,361 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 [2023-12-25 09:25:00,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:00,362 INFO L229 MonitoredProcess]: Starting monitored process 77 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) [2023-12-25 09:25:00,363 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 (77)] Waiting until timeout for monitored process [2023-12-25 09:25:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:00,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 09:25:00,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:25:01,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:25:01,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562730534] [2023-12-25 09:25:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562730534] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:01,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2023-12-25 09:25:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477504921] [2023-12-25 09:25:01,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:01,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 09:25:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 09:25:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:25:01,783 INFO L87 Difference]: Start difference. First operand 21111 states and 23148 transitions. Second operand has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 26 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:07,797 INFO L93 Difference]: Finished difference Result 41322 states and 45697 transitions. [2023-12-25 09:25:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 09:25:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 26 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2023-12-25 09:25:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:07,833 INFO L225 Difference]: With dead ends: 41322 [2023-12-25 09:25:07,834 INFO L226 Difference]: Without dead ends: 40368 [2023-12-25 09:25:07,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1070, Invalid=5410, Unknown=0, NotChecked=0, Total=6480 [2023-12-25 09:25:07,845 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 3258 mSDsluCounter, 8239 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 8811 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:07,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 8811 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 09:25:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40368 states. [2023-12-25 09:25:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40368 to 21052. [2023-12-25 09:25:08,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21052 states, 21051 states have (on average 1.096669991924374) internal successors, (23086), 21051 states have internal predecessors, (23086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21052 states to 21052 states and 23086 transitions. [2023-12-25 09:25:08,073 INFO L78 Accepts]: Start accepts. Automaton has 21052 states and 23086 transitions. Word has length 148 [2023-12-25 09:25:08,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:08,074 INFO L495 AbstractCegarLoop]: Abstraction has 21052 states and 23086 transitions. [2023-12-25 09:25:08,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 26 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 21052 states and 23086 transitions. [2023-12-25 09:25:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 09:25:08,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:08,079 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:08,082 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 (77)] Ended with exit code 0 [2023-12-25 09:25:08,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:08,279 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:08,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash 19841631, now seen corresponding path program 1 times [2023-12-25 09:25:08,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:08,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938742671] [2023-12-25 09:25:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:08,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:08,281 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2023-12-25 09:25:08,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2023-12-25 09:25:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:08,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:25:08,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 39 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:09,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 39 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:09,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:09,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938742671] [2023-12-25 09:25:09,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938742671] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:09,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:09,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 09:25:09,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935521878] [2023-12-25 09:25:09,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:09,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 09:25:09,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:09,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 09:25:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-12-25 09:25:09,659 INFO L87 Difference]: Start difference. First operand 21052 states and 23086 transitions. Second operand has 31 states, 31 states have (on average 9.129032258064516) internal successors, (283), 31 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:14,304 INFO L93 Difference]: Finished difference Result 43954 states and 48470 transitions. [2023-12-25 09:25:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-12-25 09:25:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.129032258064516) internal successors, (283), 31 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-25 09:25:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:14,345 INFO L225 Difference]: With dead ends: 43954 [2023-12-25 09:25:14,345 INFO L226 Difference]: Without dead ends: 43145 [2023-12-25 09:25:14,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2317 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1094, Invalid=8026, Unknown=0, NotChecked=0, Total=9120 [2023-12-25 09:25:14,357 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2541 mSDsluCounter, 10884 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 11464 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:14,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2541 Valid, 11464 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 09:25:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43145 states. [2023-12-25 09:25:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43145 to 21092. [2023-12-25 09:25:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21092 states, 21091 states have (on average 1.0964866530747712) internal successors, (23126), 21091 states have internal predecessors, (23126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21092 states to 21092 states and 23126 transitions. [2023-12-25 09:25:14,594 INFO L78 Accepts]: Start accepts. Automaton has 21092 states and 23126 transitions. Word has length 153 [2023-12-25 09:25:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:14,594 INFO L495 AbstractCegarLoop]: Abstraction has 21092 states and 23126 transitions. [2023-12-25 09:25:14,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.129032258064516) internal successors, (283), 31 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 21092 states and 23126 transitions. [2023-12-25 09:25:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 09:25:14,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:14,599 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:14,602 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 (78)] Ended with exit code 0 [2023-12-25 09:25:14,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:14,799 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:14,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1051437156, now seen corresponding path program 1 times [2023-12-25 09:25:14,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:14,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287900570] [2023-12-25 09:25:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:14,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:14,801 INFO L229 MonitoredProcess]: Starting monitored process 79 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) [2023-12-25 09:25:14,802 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 (79)] Waiting until timeout for monitored process [2023-12-25 09:25:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:14,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 09:25:14,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:15,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:16,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:16,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287900570] [2023-12-25 09:25:16,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287900570] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:16,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:16,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2023-12-25 09:25:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410764852] [2023-12-25 09:25:16,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:16,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-25 09:25:16,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:16,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-25 09:25:16,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2023-12-25 09:25:16,162 INFO L87 Difference]: Start difference. First operand 21092 states and 23126 transitions. Second operand has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:21,671 INFO L93 Difference]: Finished difference Result 44482 states and 48767 transitions. [2023-12-25 09:25:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-25 09:25:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-25 09:25:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:21,712 INFO L225 Difference]: With dead ends: 44482 [2023-12-25 09:25:21,712 INFO L226 Difference]: Without dead ends: 42694 [2023-12-25 09:25:21,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2160 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1391, Invalid=7351, Unknown=0, NotChecked=0, Total=8742 [2023-12-25 09:25:21,726 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 2707 mSDsluCounter, 11648 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 12352 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:21,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2707 Valid, 12352 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:25:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42694 states. [2023-12-25 09:25:21,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42694 to 19457. [2023-12-25 09:25:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19457 states, 19456 states have (on average 1.0983244243421053) internal successors, (21369), 19456 states have internal predecessors, (21369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19457 states to 19457 states and 21369 transitions. [2023-12-25 09:25:21,970 INFO L78 Accepts]: Start accepts. Automaton has 19457 states and 21369 transitions. Word has length 153 [2023-12-25 09:25:21,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:21,970 INFO L495 AbstractCegarLoop]: Abstraction has 19457 states and 21369 transitions. [2023-12-25 09:25:21,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 19457 states and 21369 transitions. [2023-12-25 09:25:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 09:25:21,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:21,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:21,978 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 (79)] Ended with exit code 0 [2023-12-25 09:25:22,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:22,175 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:22,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash -410273498, now seen corresponding path program 1 times [2023-12-25 09:25:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:22,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413162896] [2023-12-25 09:25:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:22,176 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 [2023-12-25 09:25:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:22,177 INFO L229 MonitoredProcess]: Starting monitored process 80 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) [2023-12-25 09:25:22,178 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 (80)] Waiting until timeout for monitored process [2023-12-25 09:25:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:22,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:25:22,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 28 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:23,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 28 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:23,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:23,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413162896] [2023-12-25 09:25:23,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413162896] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:23,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:23,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 09:25:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80425115] [2023-12-25 09:25:23,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:23,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 09:25:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 09:25:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-12-25 09:25:23,523 INFO L87 Difference]: Start difference. First operand 19457 states and 21369 transitions. Second operand has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:27,545 INFO L93 Difference]: Finished difference Result 33999 states and 37695 transitions. [2023-12-25 09:25:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-25 09:25:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-25 09:25:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:27,578 INFO L225 Difference]: With dead ends: 33999 [2023-12-25 09:25:27,578 INFO L226 Difference]: Without dead ends: 33491 [2023-12-25 09:25:27,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=994, Invalid=6488, Unknown=0, NotChecked=0, Total=7482 [2023-12-25 09:25:27,589 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 2782 mSDsluCounter, 8538 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 9061 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:27,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2782 Valid, 9061 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 09:25:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33491 states. [2023-12-25 09:25:27,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33491 to 19418. [2023-12-25 09:25:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19418 states, 19417 states have (on average 1.0984704125251068) internal successors, (21329), 19417 states have internal predecessors, (21329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19418 states to 19418 states and 21329 transitions. [2023-12-25 09:25:27,793 INFO L78 Accepts]: Start accepts. Automaton has 19418 states and 21329 transitions. Word has length 153 [2023-12-25 09:25:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:27,793 INFO L495 AbstractCegarLoop]: Abstraction has 19418 states and 21329 transitions. [2023-12-25 09:25:27,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 19418 states and 21329 transitions. [2023-12-25 09:25:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 09:25:27,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:27,798 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:27,801 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 (80)] Ended with exit code 0 [2023-12-25 09:25:27,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:27,999 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:27,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:27,999 INFO L85 PathProgramCache]: Analyzing trace with hash -539277882, now seen corresponding path program 1 times [2023-12-25 09:25:27,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:27,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244658459] [2023-12-25 09:25:27,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:28,000 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 [2023-12-25 09:25:28,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:28,000 INFO L229 MonitoredProcess]: Starting monitored process 81 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) [2023-12-25 09:25:28,001 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 (81)] Waiting until timeout for monitored process [2023-12-25 09:25:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:28,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 09:25:28,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 52 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:25:29,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 52 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:25:29,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:29,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244658459] [2023-12-25 09:25:29,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244658459] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:29,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:29,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-12-25 09:25:29,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562403906] [2023-12-25 09:25:29,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:29,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-25 09:25:29,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:29,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-25 09:25:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-25 09:25:29,803 INFO L87 Difference]: Start difference. First operand 19418 states and 21329 transitions. Second operand has 27 states, 27 states have (on average 10.222222222222221) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:35,061 INFO L93 Difference]: Finished difference Result 31016 states and 34171 transitions. [2023-12-25 09:25:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-25 09:25:35,061 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.222222222222221) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-12-25 09:25:35,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:35,089 INFO L225 Difference]: With dead ends: 31016 [2023-12-25 09:25:35,089 INFO L226 Difference]: Without dead ends: 28639 [2023-12-25 09:25:35,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=938, Invalid=4914, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 09:25:35,098 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2830 mSDsluCounter, 7267 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:35,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 7752 Invalid, 2198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 09:25:35,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28639 states. [2023-12-25 09:25:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28639 to 21135. [2023-12-25 09:25:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21135 states, 21134 states have (on average 1.09964985331693) internal successors, (23240), 21134 states have internal predecessors, (23240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21135 states to 21135 states and 23240 transitions. [2023-12-25 09:25:35,276 INFO L78 Accepts]: Start accepts. Automaton has 21135 states and 23240 transitions. Word has length 157 [2023-12-25 09:25:35,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:35,276 INFO L495 AbstractCegarLoop]: Abstraction has 21135 states and 23240 transitions. [2023-12-25 09:25:35,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.222222222222221) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:35,277 INFO L276 IsEmpty]: Start isEmpty. Operand 21135 states and 23240 transitions. [2023-12-25 09:25:35,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 09:25:35,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:35,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:35,285 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 (81)] Ended with exit code 0 [2023-12-25 09:25:35,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:35,482 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:35,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:35,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2101325699, now seen corresponding path program 1 times [2023-12-25 09:25:35,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:35,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639625174] [2023-12-25 09:25:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:35,483 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 [2023-12-25 09:25:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:35,484 INFO L229 MonitoredProcess]: Starting monitored process 82 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) [2023-12-25 09:25:35,485 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 (82)] Waiting until timeout for monitored process [2023-12-25 09:25:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:35,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:25:35,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 38 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:36,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 38 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:25:36,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:36,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639625174] [2023-12-25 09:25:36,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639625174] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:36,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:36,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 09:25:36,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459428177] [2023-12-25 09:25:36,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:36,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 09:25:36,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:36,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 09:25:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-12-25 09:25:36,948 INFO L87 Difference]: Start difference. First operand 21135 states and 23240 transitions. Second operand has 31 states, 31 states have (on average 9.419354838709678) internal successors, (292), 31 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:42,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:42,081 INFO L93 Difference]: Finished difference Result 41773 states and 46025 transitions. [2023-12-25 09:25:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-25 09:25:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.419354838709678) internal successors, (292), 31 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-12-25 09:25:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:42,118 INFO L225 Difference]: With dead ends: 41773 [2023-12-25 09:25:42,119 INFO L226 Difference]: Without dead ends: 39986 [2023-12-25 09:25:42,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2855 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1243, Invalid=9469, Unknown=0, NotChecked=0, Total=10712 [2023-12-25 09:25:42,130 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 2358 mSDsluCounter, 11728 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 12301 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:42,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 12301 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 09:25:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39986 states. [2023-12-25 09:25:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39986 to 23090. [2023-12-25 09:25:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23090 states, 23089 states have (on average 1.0989648750487244) internal successors, (25374), 23089 states have internal predecessors, (25374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23090 states to 23090 states and 25374 transitions. [2023-12-25 09:25:42,360 INFO L78 Accepts]: Start accepts. Automaton has 23090 states and 25374 transitions. Word has length 157 [2023-12-25 09:25:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:42,361 INFO L495 AbstractCegarLoop]: Abstraction has 23090 states and 25374 transitions. [2023-12-25 09:25:42,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.419354838709678) internal successors, (292), 31 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 23090 states and 25374 transitions. [2023-12-25 09:25:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 09:25:42,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:42,366 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:42,369 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 (82)] Ended with exit code 0 [2023-12-25 09:25:42,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:42,566 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:42,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2088280285, now seen corresponding path program 1 times [2023-12-25 09:25:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:42,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394442586] [2023-12-25 09:25:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:42,567 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 [2023-12-25 09:25:42,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:42,568 INFO L229 MonitoredProcess]: Starting monitored process 83 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) [2023-12-25 09:25:42,569 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 (83)] Waiting until timeout for monitored process [2023-12-25 09:25:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:42,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 09:25:42,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:25:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:25:43,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:25:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:25:44,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:25:44,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394442586] [2023-12-25 09:25:44,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394442586] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:25:44,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:25:44,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2023-12-25 09:25:44,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128108917] [2023-12-25 09:25:44,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:25:44,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 09:25:44,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:25:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 09:25:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:25:44,079 INFO L87 Difference]: Start difference. First operand 23090 states and 25374 transitions. Second operand has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:25:51,115 INFO L93 Difference]: Finished difference Result 50697 states and 55968 transitions. [2023-12-25 09:25:51,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-12-25 09:25:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-12-25 09:25:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:25:51,160 INFO L225 Difference]: With dead ends: 50697 [2023-12-25 09:25:51,161 INFO L226 Difference]: Without dead ends: 47616 [2023-12-25 09:25:51,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2019 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1458, Invalid=6552, Unknown=0, NotChecked=0, Total=8010 [2023-12-25 09:25:51,175 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 2501 mSDsluCounter, 7844 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:25:51,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 8421 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 09:25:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47616 states. [2023-12-25 09:25:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47616 to 23110. [2023-12-25 09:25:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23110 states, 23109 states have (on average 1.0988792245445498) internal successors, (25394), 23109 states have internal predecessors, (25394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23110 states to 23110 states and 25394 transitions. [2023-12-25 09:25:51,503 INFO L78 Accepts]: Start accepts. Automaton has 23110 states and 25394 transitions. Word has length 157 [2023-12-25 09:25:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:25:51,503 INFO L495 AbstractCegarLoop]: Abstraction has 23110 states and 25394 transitions. [2023-12-25 09:25:51,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:25:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 23110 states and 25394 transitions. [2023-12-25 09:25:51,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 09:25:51,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:25:51,509 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:25:51,511 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 (83)] Ended with exit code 0 [2023-12-25 09:25:51,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:25:51,709 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-25 09:25:51,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:25:51,710 INFO L85 PathProgramCache]: Analyzing trace with hash 244705277, now seen corresponding path program 1 times [2023-12-25 09:25:51,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:25:51,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420536795] [2023-12-25 09:25:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:25:51,710 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 [2023-12-25 09:25:51,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:25:51,711 INFO L229 MonitoredProcess]: Starting monitored process 84 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) [2023-12-25 09:25:51,712 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 (84)] Waiting until timeout for monitored process [2023-12-25 09:25:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:25:51,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 09:25:51,908 INFO L285 TraceCheckSpWp]: Computing forward predicates...