/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:56:37,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:56:37,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:56:37,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:56:37,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:56:37,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:56:37,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:56:37,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:56:37,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:56:37,401 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:56:37,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:56:37,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:56:37,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:56:37,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:56:37,404 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:56:37,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:56:37,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:56:37,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:56:37,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:56:37,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:56:37,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:56:37,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:56:37,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:56:37,407 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:56:37,407 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:56:37,407 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:56:37,407 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:56:37,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:56:37,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:56:37,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:56:37,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:56:37,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:56:37,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:56:37,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:56:37,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:37,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:56:37,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:56:37,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:56:37,410 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:56:37,411 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:56:37,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:56:37,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:56:37,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:56:37,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:56:37,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:56:37,412 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:56:37,412 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:56:37,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:56:37,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:56:37,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:56:37,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:56:37,675 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:56:37,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:38,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:56:39,075 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:56:39,076 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:39,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9ac65eae/4dadc96cdbc043228ffe62eb0c7a47a4/FLAGefee60802 [2023-12-16 17:56:39,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9ac65eae/4dadc96cdbc043228ffe62eb0c7a47a4 [2023-12-16 17:56:39,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:56:39,104 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:56:39,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:39,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:56:39,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:56:39,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22119032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39, skipping insertion in model container [2023-12-16 17:56:39,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:56:39,416 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2023-12-16 17:56:39,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:39,436 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:56:39,486 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c[14680,14693] [2023-12-16 17:56:39,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:39,501 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:56:39,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39 WrapperNode [2023-12-16 17:56:39,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:39,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:39,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:56:39,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:56:39,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,552 INFO L138 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 476 [2023-12-16 17:56:39,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:39,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:56:39,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:56:39,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:56:39,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,590 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:56:39,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:56:39,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:56:39,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:56:39,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:56:39,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (1/1) ... [2023-12-16 17:56:39,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:39,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:56:39,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:56:39,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:56:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-12-16 17:56:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-12-16 17:56:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:56:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:56:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-12-16 17:56:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-12-16 17:56:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-16 17:56:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-16 17:56:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2023-12-16 17:56:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2023-12-16 17:56:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 17:56:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 17:56:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-12-16 17:56:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-12-16 17:56:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:56:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:56:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-12-16 17:56:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-12-16 17:56:39,845 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:56:39,849 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:56:40,380 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:56:40,422 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:56:40,422 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:56:40,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:40 BoogieIcfgContainer [2023-12-16 17:56:40,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:56:40,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:56:40,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:56:40,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:56:40,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:56:39" (1/3) ... [2023-12-16 17:56:40,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384af733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:40, skipping insertion in model container [2023-12-16 17:56:40,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:39" (2/3) ... [2023-12-16 17:56:40,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384af733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:40, skipping insertion in model container [2023-12-16 17:56:40,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:40" (3/3) ... [2023-12-16 17:56:40,433 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.UNBOUNDED.pals.c [2023-12-16 17:56:40,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:56:40,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:56:40,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:56:40,512 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;@62ff2c64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:56:40,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:56:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 130 states have (on average 1.6) internal successors, (208), 132 states have internal predecessors, (208), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 17:56:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:40,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:40,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:40,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:40,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash 975176766, now seen corresponding path program 1 times [2023-12-16 17:56:40,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:40,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36295195] [2023-12-16 17:56:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:40,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:40,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:40,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:40,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:56:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:40,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:56:40,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:40,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:40,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:40,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36295195] [2023-12-16 17:56:40,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36295195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:40,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:40,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371610232] [2023-12-16 17:56:40,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:40,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:56:40,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:56:40,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:56:40,700 INFO L87 Difference]: Start difference. First operand has 170 states, 130 states have (on average 1.6) internal successors, (208), 132 states have internal predecessors, (208), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:40,762 INFO L93 Difference]: Finished difference Result 323 states and 540 transitions. [2023-12-16 17:56:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:56:40,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-16 17:56:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:40,777 INFO L225 Difference]: With dead ends: 323 [2023-12-16 17:56:40,777 INFO L226 Difference]: Without dead ends: 168 [2023-12-16 17:56:40,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:56:40,790 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:40,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-16 17:56:40,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2023-12-16 17:56:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 129 states have (on average 1.573643410852713) internal successors, (203), 130 states have internal predecessors, (203), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 17:56:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 265 transitions. [2023-12-16 17:56:40,838 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 265 transitions. Word has length 23 [2023-12-16 17:56:40,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:40,839 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 265 transitions. [2023-12-16 17:56:40,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:40,839 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 265 transitions. [2023-12-16 17:56:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:40,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:40,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:40,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:56:41,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:41,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:41,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:41,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1018967940, now seen corresponding path program 1 times [2023-12-16 17:56:41,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:41,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784698833] [2023-12-16 17:56:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:41,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:41,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:41,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:41,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:56:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:41,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:41,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:41,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:41,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:41,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784698833] [2023-12-16 17:56:41,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784698833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:41,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:41,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427972655] [2023-12-16 17:56:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:41,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:41,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:41,218 INFO L87 Difference]: Start difference. First operand 168 states and 265 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,348 INFO L93 Difference]: Finished difference Result 323 states and 505 transitions. [2023-12-16 17:56:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-16 17:56:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,351 INFO L225 Difference]: With dead ends: 323 [2023-12-16 17:56:41,351 INFO L226 Difference]: Without dead ends: 168 [2023-12-16 17:56:41,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:41,353 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 131 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1108 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-16 17:56:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2023-12-16 17:56:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 129 states have (on average 1.4806201550387597) internal successors, (191), 130 states have internal predecessors, (191), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 17:56:41,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 253 transitions. [2023-12-16 17:56:41,369 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 253 transitions. Word has length 23 [2023-12-16 17:56:41,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:41,369 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 253 transitions. [2023-12-16 17:56:41,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 253 transitions. [2023-12-16 17:56:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 17:56:41,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:41,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:41,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:41,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:41,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:41,577 INFO L85 PathProgramCache]: Analyzing trace with hash 26280683, now seen corresponding path program 1 times [2023-12-16 17:56:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:41,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317779246] [2023-12-16 17:56:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:41,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:41,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:41,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:41,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:56:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:41,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:41,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:41,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:41,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:41,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317779246] [2023-12-16 17:56:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317779246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:41,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:41,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:41,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106124813] [2023-12-16 17:56:41,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:41,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:41,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:41,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:41,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:41,702 INFO L87 Difference]: Start difference. First operand 168 states and 253 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,771 INFO L93 Difference]: Finished difference Result 326 states and 500 transitions. [2023-12-16 17:56:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:41,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-12-16 17:56:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,777 INFO L225 Difference]: With dead ends: 326 [2023-12-16 17:56:41,777 INFO L226 Difference]: Without dead ends: 174 [2023-12-16 17:56:41,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:41,780 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 6 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 716 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-16 17:56:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2023-12-16 17:56:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 132 states have (on average 1.4696969696969697) internal successors, (194), 133 states have internal predecessors, (194), 31 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 17:56:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 256 transitions. [2023-12-16 17:56:41,816 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 256 transitions. Word has length 34 [2023-12-16 17:56:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:41,816 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 256 transitions. [2023-12-16 17:56:41,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 256 transitions. [2023-12-16 17:56:41,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-16 17:56:41,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,818 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:41,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:42,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1285077620, now seen corresponding path program 1 times [2023-12-16 17:56:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197115879] [2023-12-16 17:56:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:42,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:56:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:42,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197115879] [2023-12-16 17:56:42,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197115879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899611887] [2023-12-16 17:56:42,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:42,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:42,192 INFO L87 Difference]: Start difference. First operand 172 states and 256 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:42,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,339 INFO L93 Difference]: Finished difference Result 366 states and 553 transitions. [2023-12-16 17:56:42,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:42,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-12-16 17:56:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,342 INFO L225 Difference]: With dead ends: 366 [2023-12-16 17:56:42,342 INFO L226 Difference]: Without dead ends: 210 [2023-12-16 17:56:42,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:42,343 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 341 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 643 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-16 17:56:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2023-12-16 17:56:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 164 states have (on average 1.475609756097561) internal successors, (242), 164 states have internal predecessors, (242), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 17:56:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 310 transitions. [2023-12-16 17:56:42,360 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 310 transitions. Word has length 48 [2023-12-16 17:56:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,361 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 310 transitions. [2023-12-16 17:56:42,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 310 transitions. [2023-12-16 17:56:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 17:56:42,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:42,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:42,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash 232743333, now seen corresponding path program 1 times [2023-12-16 17:56:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197272275] [2023-12-16 17:56:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,567 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 [2023-12-16 17:56:42,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:42,569 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 (6)] Waiting until timeout for monitored process [2023-12-16 17:56:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:42,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197272275] [2023-12-16 17:56:42,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197272275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025741578] [2023-12-16 17:56:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:42,761 INFO L87 Difference]: Start difference. First operand 209 states and 310 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,904 INFO L93 Difference]: Finished difference Result 367 states and 552 transitions. [2023-12-16 17:56:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:42,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2023-12-16 17:56:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,908 INFO L225 Difference]: With dead ends: 367 [2023-12-16 17:56:42,910 INFO L226 Difference]: Without dead ends: 211 [2023-12-16 17:56:42,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:42,915 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 338 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 645 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-16 17:56:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2023-12-16 17:56:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 165 states have (on average 1.4666666666666666) internal successors, (242), 165 states have internal predecessors, (242), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 17:56:42,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2023-12-16 17:56:42,934 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 49 [2023-12-16 17:56:42,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,935 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2023-12-16 17:56:42,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:42,935 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2023-12-16 17:56:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:56:42,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:42,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:43,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash -401503490, now seen corresponding path program 1 times [2023-12-16 17:56:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956722287] [2023-12-16 17:56:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:43,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:56:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:43,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:43,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956722287] [2023-12-16 17:56:43,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956722287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:43,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:43,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979592945] [2023-12-16 17:56:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:43,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:43,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:43,254 INFO L87 Difference]: Start difference. First operand 210 states and 310 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,300 INFO L93 Difference]: Finished difference Result 538 states and 803 transitions. [2023-12-16 17:56:43,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:43,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2023-12-16 17:56:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,303 INFO L225 Difference]: With dead ends: 538 [2023-12-16 17:56:43,303 INFO L226 Difference]: Without dead ends: 382 [2023-12-16 17:56:43,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:43,304 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 201 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 495 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-16 17:56:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 379. [2023-12-16 17:56:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 293 states have (on average 1.47098976109215) internal successors, (431), 294 states have internal predecessors, (431), 65 states have call successors, (65), 20 states have call predecessors, (65), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 17:56:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 561 transitions. [2023-12-16 17:56:43,333 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 561 transitions. Word has length 52 [2023-12-16 17:56:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,333 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 561 transitions. [2023-12-16 17:56:43,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 561 transitions. [2023-12-16 17:56:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:43,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:43,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:43,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1349941554, now seen corresponding path program 1 times [2023-12-16 17:56:43,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402642849] [2023-12-16 17:56:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:43,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:56:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:43,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:43,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402642849] [2023-12-16 17:56:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402642849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:43,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:43,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733927512] [2023-12-16 17:56:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:43,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:43,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:43,647 INFO L87 Difference]: Start difference. First operand 379 states and 561 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,712 INFO L93 Difference]: Finished difference Result 975 states and 1455 transitions. [2023-12-16 17:56:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2023-12-16 17:56:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,716 INFO L225 Difference]: With dead ends: 975 [2023-12-16 17:56:43,716 INFO L226 Difference]: Without dead ends: 677 [2023-12-16 17:56:43,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:43,718 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 202 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 515 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-16 17:56:43,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 671. [2023-12-16 17:56:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 509 states have (on average 1.4656188605108056) internal successors, (746), 512 states have internal predecessors, (746), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2023-12-16 17:56:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 994 transitions. [2023-12-16 17:56:43,770 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 994 transitions. Word has length 53 [2023-12-16 17:56:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 994 transitions. [2023-12-16 17:56:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 994 transitions. [2023-12-16 17:56:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:43,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,771 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:43,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:43,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash 70077876, now seen corresponding path program 1 times [2023-12-16 17:56:43,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590615156] [2023-12-16 17:56:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:43,992 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 (9)] Waiting until timeout for monitored process [2023-12-16 17:56:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:56:44,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590615156] [2023-12-16 17:56:44,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590615156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:44,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912110502] [2023-12-16 17:56:44,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,109 INFO L87 Difference]: Start difference. First operand 671 states and 994 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,197 INFO L93 Difference]: Finished difference Result 1130 states and 1691 transitions. [2023-12-16 17:56:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2023-12-16 17:56:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,201 INFO L225 Difference]: With dead ends: 1130 [2023-12-16 17:56:44,201 INFO L226 Difference]: Without dead ends: 531 [2023-12-16 17:56:44,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:44,203 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 2 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 968 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-16 17:56:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-16 17:56:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 406 states have (on average 1.4630541871921183) internal successors, (594), 408 states have internal predecessors, (594), 95 states have call successors, (95), 29 states have call predecessors, (95), 29 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-16 17:56:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 784 transitions. [2023-12-16 17:56:44,244 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 784 transitions. Word has length 53 [2023-12-16 17:56:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,245 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 784 transitions. [2023-12-16 17:56:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 784 transitions. [2023-12-16 17:56:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 17:56:44,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,247 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2119228483, now seen corresponding path program 1 times [2023-12-16 17:56:44,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284859154] [2023-12-16 17:56:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:44,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:56:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:44,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284859154] [2023-12-16 17:56:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284859154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997533862] [2023-12-16 17:56:44,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:44,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:44,567 INFO L87 Difference]: Start difference. First operand 531 states and 784 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,630 INFO L93 Difference]: Finished difference Result 990 states and 1478 transitions. [2023-12-16 17:56:44,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2023-12-16 17:56:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,634 INFO L225 Difference]: With dead ends: 990 [2023-12-16 17:56:44,634 INFO L226 Difference]: Without dead ends: 552 [2023-12-16 17:56:44,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,637 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 7 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 729 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-16 17:56:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 546. [2023-12-16 17:56:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 418 states have (on average 1.4497607655502391) internal successors, (606), 420 states have internal predecessors, (606), 95 states have call successors, (95), 32 states have call predecessors, (95), 32 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-16 17:56:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 796 transitions. [2023-12-16 17:56:44,677 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 796 transitions. Word has length 54 [2023-12-16 17:56:44,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,679 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 796 transitions. [2023-12-16 17:56:44,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 796 transitions. [2023-12-16 17:56:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 17:56:44,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,681 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,885 INFO L85 PathProgramCache]: Analyzing trace with hash -410924183, now seen corresponding path program 1 times [2023-12-16 17:56:44,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131320996] [2023-12-16 17:56:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:44,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:56:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:44,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131320996] [2023-12-16 17:56:44,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131320996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531531562] [2023-12-16 17:56:44,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:44,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:44,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:44,981 INFO L87 Difference]: Start difference. First operand 546 states and 796 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,051 INFO L93 Difference]: Finished difference Result 1020 states and 1517 transitions. [2023-12-16 17:56:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:45,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 62 [2023-12-16 17:56:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,054 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:56:45,054 INFO L226 Difference]: Without dead ends: 567 [2023-12-16 17:56:45,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,056 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 7 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 721 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-12-16 17:56:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 561. [2023-12-16 17:56:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 430 states have (on average 1.4372093023255814) internal successors, (618), 432 states have internal predecessors, (618), 95 states have call successors, (95), 35 states have call predecessors, (95), 35 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-16 17:56:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 808 transitions. [2023-12-16 17:56:45,124 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 808 transitions. Word has length 62 [2023-12-16 17:56:45,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,124 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 808 transitions. [2023-12-16 17:56:45,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 808 transitions. [2023-12-16 17:56:45,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:45,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:45,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:45,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,328 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,329 INFO L85 PathProgramCache]: Analyzing trace with hash -846693581, now seen corresponding path program 1 times [2023-12-16 17:56:45,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135180854] [2023-12-16 17:56:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,331 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:45,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:56:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:45,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:45,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135180854] [2023-12-16 17:56:45,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135180854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:45,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:45,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:45,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059319756] [2023-12-16 17:56:45,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:45,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:45,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:45,434 INFO L87 Difference]: Start difference. First operand 561 states and 808 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,504 INFO L93 Difference]: Finished difference Result 1047 states and 1523 transitions. [2023-12-16 17:56:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:45,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2023-12-16 17:56:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,508 INFO L225 Difference]: With dead ends: 1047 [2023-12-16 17:56:45,508 INFO L226 Difference]: Without dead ends: 579 [2023-12-16 17:56:45,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,510 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 6 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 721 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:45,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-16 17:56:45,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 573. [2023-12-16 17:56:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 439 states have (on average 1.428246013667426) internal successors, (627), 441 states have internal predecessors, (627), 95 states have call successors, (95), 38 states have call predecessors, (95), 38 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-16 17:56:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 817 transitions. [2023-12-16 17:56:45,545 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 817 transitions. Word has length 70 [2023-12-16 17:56:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,546 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 817 transitions. [2023-12-16 17:56:45,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 817 transitions. [2023-12-16 17:56:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:45,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,547 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:45,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:45,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1549765722, now seen corresponding path program 1 times [2023-12-16 17:56:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965912041] [2023-12-16 17:56:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,755 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:45,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:56:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:45,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:46,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965912041] [2023-12-16 17:56:46,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965912041] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:46,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:46,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:46,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102249707] [2023-12-16 17:56:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:46,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:46,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:46,064 INFO L87 Difference]: Start difference. First operand 573 states and 817 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,396 INFO L93 Difference]: Finished difference Result 1617 states and 2344 transitions. [2023-12-16 17:56:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:46,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 70 [2023-12-16 17:56:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,403 INFO L225 Difference]: With dead ends: 1617 [2023-12-16 17:56:46,403 INFO L226 Difference]: Without dead ends: 1137 [2023-12-16 17:56:46,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:46,405 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 345 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1386 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2023-12-16 17:56:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 844. [2023-12-16 17:56:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 635 states have (on average 1.4173228346456692) internal successors, (900), 639 states have internal predecessors, (900), 149 states have call successors, (149), 59 states have call predecessors, (149), 59 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-16 17:56:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1198 transitions. [2023-12-16 17:56:46,481 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1198 transitions. Word has length 70 [2023-12-16 17:56:46,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,481 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1198 transitions. [2023-12-16 17:56:46,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1198 transitions. [2023-12-16 17:56:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:56:46,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,483 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:46,491 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 [2023-12-16 17:56:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,685 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1489044155, now seen corresponding path program 1 times [2023-12-16 17:56:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611498317] [2023-12-16 17:56:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,688 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:46,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:56:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:46,787 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:46,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:46,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611498317] [2023-12-16 17:56:46,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611498317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:46,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:46,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:46,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129242711] [2023-12-16 17:56:46,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:46,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:46,789 INFO L87 Difference]: Start difference. First operand 844 states and 1198 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:46,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,875 INFO L93 Difference]: Finished difference Result 1579 states and 2288 transitions. [2023-12-16 17:56:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:46,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2023-12-16 17:56:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,880 INFO L225 Difference]: With dead ends: 1579 [2023-12-16 17:56:46,880 INFO L226 Difference]: Without dead ends: 879 [2023-12-16 17:56:46,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:46,882 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 7 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 721 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-12-16 17:56:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 869. [2023-12-16 17:56:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 655 states have (on average 1.4045801526717556) internal successors, (920), 659 states have internal predecessors, (920), 149 states have call successors, (149), 64 states have call predecessors, (149), 64 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-16 17:56:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1218 transitions. [2023-12-16 17:56:46,939 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1218 transitions. Word has length 77 [2023-12-16 17:56:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,939 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1218 transitions. [2023-12-16 17:56:46,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1218 transitions. [2023-12-16 17:56:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:56:46,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:46,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:47,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,144 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,145 INFO L85 PathProgramCache]: Analyzing trace with hash -469955579, now seen corresponding path program 1 times [2023-12-16 17:56:47,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396489628] [2023-12-16 17:56:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,146 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,164 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 (15)] Waiting until timeout for monitored process [2023-12-16 17:56:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:47,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:47,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396489628] [2023-12-16 17:56:47,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396489628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:47,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:47,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:47,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749188039] [2023-12-16 17:56:47,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:47,249 INFO L87 Difference]: Start difference. First operand 869 states and 1218 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:47,350 INFO L93 Difference]: Finished difference Result 1618 states and 2288 transitions. [2023-12-16 17:56:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 85 [2023-12-16 17:56:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:47,355 INFO L225 Difference]: With dead ends: 1618 [2023-12-16 17:56:47,355 INFO L226 Difference]: Without dead ends: 899 [2023-12-16 17:56:47,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,358 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 6 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:47,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 721 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-12-16 17:56:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 889. [2023-12-16 17:56:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 670 states have (on average 1.3955223880597014) internal successors, (935), 674 states have internal predecessors, (935), 149 states have call successors, (149), 69 states have call predecessors, (149), 69 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-16 17:56:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1233 transitions. [2023-12-16 17:56:47,413 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1233 transitions. Word has length 85 [2023-12-16 17:56:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:47,414 INFO L495 AbstractCegarLoop]: Abstraction has 889 states and 1233 transitions. [2023-12-16 17:56:47,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1233 transitions. [2023-12-16 17:56:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:56:47,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:47,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:47,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:47,623 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 [2023-12-16 17:56:47,624 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2137003126, now seen corresponding path program 1 times [2023-12-16 17:56:47,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962863828] [2023-12-16 17:56:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,626 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:56:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:56:47,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:56:47,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962863828] [2023-12-16 17:56:47,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962863828] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:47,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:47,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:56:47,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876990138] [2023-12-16 17:56:47,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:56:47,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:56:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:47,894 INFO L87 Difference]: Start difference. First operand 889 states and 1233 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:48,181 INFO L93 Difference]: Finished difference Result 1773 states and 2504 transitions. [2023-12-16 17:56:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:48,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 86 [2023-12-16 17:56:48,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:48,187 INFO L225 Difference]: With dead ends: 1773 [2023-12-16 17:56:48,187 INFO L226 Difference]: Without dead ends: 1050 [2023-12-16 17:56:48,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:48,189 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 312 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:48,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1820 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:48,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2023-12-16 17:56:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 889. [2023-12-16 17:56:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 670 states have (on average 1.3925373134328358) internal successors, (933), 674 states have internal predecessors, (933), 149 states have call successors, (149), 69 states have call predecessors, (149), 69 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-16 17:56:48,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1231 transitions. [2023-12-16 17:56:48,250 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1231 transitions. Word has length 86 [2023-12-16 17:56:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:48,251 INFO L495 AbstractCegarLoop]: Abstraction has 889 states and 1231 transitions. [2023-12-16 17:56:48,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1231 transitions. [2023-12-16 17:56:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:56:48,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:48,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:48,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:48,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:48,457 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:48,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1250316306, now seen corresponding path program 1 times [2023-12-16 17:56:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:48,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888275368] [2023-12-16 17:56:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:48,458 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 [2023-12-16 17:56:48,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:48,459 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:48,459 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 (17)] Waiting until timeout for monitored process [2023-12-16 17:56:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:48,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:48,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:48,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:48,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:48,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888275368] [2023-12-16 17:56:48,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888275368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:48,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:48,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166640152] [2023-12-16 17:56:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:48,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:48,643 INFO L87 Difference]: Start difference. First operand 889 states and 1231 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:49,147 INFO L93 Difference]: Finished difference Result 1757 states and 2502 transitions. [2023-12-16 17:56:49,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:49,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2023-12-16 17:56:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:49,154 INFO L225 Difference]: With dead ends: 1757 [2023-12-16 17:56:49,154 INFO L226 Difference]: Without dead ends: 1136 [2023-12-16 17:56:49,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:49,186 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 533 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1664 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:56:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-12-16 17:56:49,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 881. [2023-12-16 17:56:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 661 states have (on average 1.37821482602118) internal successors, (911), 665 states have internal predecessors, (911), 149 states have call successors, (149), 70 states have call predecessors, (149), 70 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-16 17:56:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1209 transitions. [2023-12-16 17:56:49,253 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1209 transitions. Word has length 90 [2023-12-16 17:56:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:49,253 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1209 transitions. [2023-12-16 17:56:49,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1209 transitions. [2023-12-16 17:56:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:56:49,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:49,255 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:49,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:49,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1765724356, now seen corresponding path program 1 times [2023-12-16 17:56:49,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55974222] [2023-12-16 17:56:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,463 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:49,466 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 (18)] Waiting until timeout for monitored process [2023-12-16 17:56:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:49,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:49,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:49,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55974222] [2023-12-16 17:56:49,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55974222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:49,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:49,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:49,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069748734] [2023-12-16 17:56:49,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:49,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:49,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:49,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:49,636 INFO L87 Difference]: Start difference. First operand 881 states and 1209 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:50,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:50,153 INFO L93 Difference]: Finished difference Result 1869 states and 2640 transitions. [2023-12-16 17:56:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:50,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2023-12-16 17:56:50,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:50,160 INFO L225 Difference]: With dead ends: 1869 [2023-12-16 17:56:50,160 INFO L226 Difference]: Without dead ends: 1248 [2023-12-16 17:56:50,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:50,162 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 413 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:50,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2029 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:56:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2023-12-16 17:56:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 996. [2023-12-16 17:56:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 741 states have (on average 1.3630229419703104) internal successors, (1010), 746 states have internal predecessors, (1010), 172 states have call successors, (172), 82 states have call predecessors, (172), 82 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2023-12-16 17:56:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1354 transitions. [2023-12-16 17:56:50,261 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1354 transitions. Word has length 91 [2023-12-16 17:56:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:50,262 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 1354 transitions. [2023-12-16 17:56:50,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1354 transitions. [2023-12-16 17:56:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:56:50,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:50,263 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:50,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:50,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:50,467 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:50,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1377653866, now seen corresponding path program 1 times [2023-12-16 17:56:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:50,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418496719] [2023-12-16 17:56:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:50,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:50,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:50,469 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:50,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:56:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:50,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:50,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:56:50,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:50,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:50,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418496719] [2023-12-16 17:56:50,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418496719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:50,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:50,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819182411] [2023-12-16 17:56:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:50,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:50,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:50,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:50,627 INFO L87 Difference]: Start difference. First operand 996 states and 1354 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:51,067 INFO L93 Difference]: Finished difference Result 1938 states and 2674 transitions. [2023-12-16 17:56:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:51,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 93 [2023-12-16 17:56:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:51,073 INFO L225 Difference]: With dead ends: 1938 [2023-12-16 17:56:51,073 INFO L226 Difference]: Without dead ends: 1105 [2023-12-16 17:56:51,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:51,076 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 544 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:51,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1359 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:56:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-16 17:56:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 996. [2023-12-16 17:56:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 741 states have (on average 1.3549257759784075) internal successors, (1004), 746 states have internal predecessors, (1004), 172 states have call successors, (172), 82 states have call predecessors, (172), 82 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2023-12-16 17:56:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1348 transitions. [2023-12-16 17:56:51,163 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1348 transitions. Word has length 93 [2023-12-16 17:56:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:51,164 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 1348 transitions. [2023-12-16 17:56:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1348 transitions. [2023-12-16 17:56:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:56:51,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:51,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:51,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:51,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,368 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:51,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1782988361, now seen corresponding path program 1 times [2023-12-16 17:56:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713881503] [2023-12-16 17:56:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:51,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:51,370 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:51,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:56:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:51,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:51,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:51,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:51,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713881503] [2023-12-16 17:56:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713881503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:51,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:51,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:51,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246920426] [2023-12-16 17:56:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:51,537 INFO L87 Difference]: Start difference. First operand 996 states and 1348 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:51,758 INFO L93 Difference]: Finished difference Result 2399 states and 3268 transitions. [2023-12-16 17:56:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:51,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2023-12-16 17:56:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:51,767 INFO L225 Difference]: With dead ends: 2399 [2023-12-16 17:56:51,767 INFO L226 Difference]: Without dead ends: 1791 [2023-12-16 17:56:51,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:51,769 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 166 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:51,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 827 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2023-12-16 17:56:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1699. [2023-12-16 17:56:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1256 states have (on average 1.3455414012738853) internal successors, (1690), 1266 states have internal predecessors, (1690), 300 states have call successors, (300), 142 states have call predecessors, (300), 142 states have return successors, (300), 290 states have call predecessors, (300), 300 states have call successors, (300) [2023-12-16 17:56:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2290 transitions. [2023-12-16 17:56:51,953 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2290 transitions. Word has length 92 [2023-12-16 17:56:51,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:51,953 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2290 transitions. [2023-12-16 17:56:51,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2290 transitions. [2023-12-16 17:56:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:51,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:51,955 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:51,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-16 17:56:52,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,158 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:52,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1529183188, now seen corresponding path program 1 times [2023-12-16 17:56:52,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:52,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720897100] [2023-12-16 17:56:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:52,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:52,160 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:52,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:56:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:52,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:52,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:56:52,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:56:52,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:52,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720897100] [2023-12-16 17:56:52,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720897100] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:52,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731546760] [2023-12-16 17:56:52,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:52,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:52,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:52,451 INFO L87 Difference]: Start difference. First operand 1699 states and 2290 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:52,841 INFO L93 Difference]: Finished difference Result 3171 states and 4306 transitions. [2023-12-16 17:56:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:52,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:52,850 INFO L225 Difference]: With dead ends: 3171 [2023-12-16 17:56:52,850 INFO L226 Difference]: Without dead ends: 1922 [2023-12-16 17:56:52,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:52,854 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 232 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:52,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1924 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:52,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-12-16 17:56:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1699. [2023-12-16 17:56:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1256 states have (on average 1.34156050955414) internal successors, (1685), 1266 states have internal predecessors, (1685), 300 states have call successors, (300), 142 states have call predecessors, (300), 142 states have return successors, (300), 290 states have call predecessors, (300), 300 states have call successors, (300) [2023-12-16 17:56:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2285 transitions. [2023-12-16 17:56:53,037 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2285 transitions. Word has length 94 [2023-12-16 17:56:53,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:53,038 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2285 transitions. [2023-12-16 17:56:53,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:53,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2285 transitions. [2023-12-16 17:56:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:53,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:53,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:53,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:53,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:53,242 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:53,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:53,243 INFO L85 PathProgramCache]: Analyzing trace with hash 890629356, now seen corresponding path program 1 times [2023-12-16 17:56:53,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:53,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492827617] [2023-12-16 17:56:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:53,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:53,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:53,244 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:53,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:56:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:53,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:53,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:53,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:53,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492827617] [2023-12-16 17:56:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492827617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:53,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:53,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806737863] [2023-12-16 17:56:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:53,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:53,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:53,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:53,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:53,401 INFO L87 Difference]: Start difference. First operand 1699 states and 2285 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:53,676 INFO L93 Difference]: Finished difference Result 3919 states and 5306 transitions. [2023-12-16 17:56:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:53,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:53,688 INFO L225 Difference]: With dead ends: 3919 [2023-12-16 17:56:53,688 INFO L226 Difference]: Without dead ends: 2731 [2023-12-16 17:56:53,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:53,692 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 175 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:53,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1074 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2023-12-16 17:56:53,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2586. [2023-12-16 17:56:53,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 1904 states have (on average 1.328781512605042) internal successors, (2530), 1920 states have internal predecessors, (2530), 464 states have call successors, (464), 217 states have call predecessors, (464), 217 states have return successors, (464), 448 states have call predecessors, (464), 464 states have call successors, (464) [2023-12-16 17:56:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3458 transitions. [2023-12-16 17:56:53,905 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3458 transitions. Word has length 94 [2023-12-16 17:56:53,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:53,906 INFO L495 AbstractCegarLoop]: Abstraction has 2586 states and 3458 transitions. [2023-12-16 17:56:53,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3458 transitions. [2023-12-16 17:56:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:53,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:53,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:53,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:54,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:54,110 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:54,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1142837102, now seen corresponding path program 1 times [2023-12-16 17:56:54,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:54,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418825314] [2023-12-16 17:56:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:54,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:54,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:54,113 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:54,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:56:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:54,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:54,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:54,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:54,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418825314] [2023-12-16 17:56:54,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418825314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:54,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:54,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:54,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397624939] [2023-12-16 17:56:54,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:54,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:54,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:54,234 INFO L87 Difference]: Start difference. First operand 2586 states and 3458 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:54,492 INFO L93 Difference]: Finished difference Result 4394 states and 5891 transitions. [2023-12-16 17:56:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:54,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:54,504 INFO L225 Difference]: With dead ends: 4394 [2023-12-16 17:56:54,504 INFO L226 Difference]: Without dead ends: 2131 [2023-12-16 17:56:54,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:54,510 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 328 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:54,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 654 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:54,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2023-12-16 17:56:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2131. [2023-12-16 17:56:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2131 states, 1570 states have (on average 1.3292993630573249) internal successors, (2087), 1583 states have internal predecessors, (2087), 378 states have call successors, (378), 182 states have call predecessors, (378), 182 states have return successors, (378), 365 states have call predecessors, (378), 378 states have call successors, (378) [2023-12-16 17:56:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2843 transitions. [2023-12-16 17:56:54,717 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2843 transitions. Word has length 94 [2023-12-16 17:56:54,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:54,717 INFO L495 AbstractCegarLoop]: Abstraction has 2131 states and 2843 transitions. [2023-12-16 17:56:54,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2843 transitions. [2023-12-16 17:56:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:54,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:54,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:54,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:54,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:54,922 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:54,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash 232973309, now seen corresponding path program 1 times [2023-12-16 17:56:54,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:54,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203459461] [2023-12-16 17:56:54,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:54,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:54,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:54,924 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:54,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:56:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:55,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:55,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:56:55,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:56:55,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:55,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203459461] [2023-12-16 17:56:55,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203459461] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:55,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:55,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770452764] [2023-12-16 17:56:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:55,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:55,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:55,214 INFO L87 Difference]: Start difference. First operand 2131 states and 2843 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:55,548 INFO L93 Difference]: Finished difference Result 4361 states and 5923 transitions. [2023-12-16 17:56:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:55,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2023-12-16 17:56:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:55,559 INFO L225 Difference]: With dead ends: 4361 [2023-12-16 17:56:55,560 INFO L226 Difference]: Without dead ends: 2494 [2023-12-16 17:56:55,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 186 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:55,564 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 211 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:55,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1683 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2023-12-16 17:56:55,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 1944. [2023-12-16 17:56:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1435 states have (on average 1.3289198606271777) internal successors, (1907), 1447 states have internal predecessors, (1907), 340 states have call successors, (340), 168 states have call predecessors, (340), 168 states have return successors, (340), 328 states have call predecessors, (340), 340 states have call successors, (340) [2023-12-16 17:56:55,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2587 transitions. [2023-12-16 17:56:55,737 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2587 transitions. Word has length 97 [2023-12-16 17:56:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:55,737 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2587 transitions. [2023-12-16 17:56:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2587 transitions. [2023-12-16 17:56:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:55,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:55,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:55,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:55,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,942 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:55,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:55,942 INFO L85 PathProgramCache]: Analyzing trace with hash 976654501, now seen corresponding path program 1 times [2023-12-16 17:56:55,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:55,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171128479] [2023-12-16 17:56:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:55,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:55,944 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:55,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:56:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:56,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:56,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:56,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:56,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:56,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171128479] [2023-12-16 17:56:56,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171128479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:56,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:56,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:56,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586452323] [2023-12-16 17:56:56,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:56,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:56,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:56,111 INFO L87 Difference]: Start difference. First operand 1944 states and 2587 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:56,323 INFO L93 Difference]: Finished difference Result 3573 states and 4771 transitions. [2023-12-16 17:56:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-12-16 17:56:56,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:56,331 INFO L225 Difference]: With dead ends: 3573 [2023-12-16 17:56:56,331 INFO L226 Difference]: Without dead ends: 1796 [2023-12-16 17:56:56,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:56,335 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 304 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:56,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:56,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2023-12-16 17:56:56,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1770. [2023-12-16 17:56:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1303 states have (on average 1.3223330775134305) internal successors, (1723), 1314 states have internal predecessors, (1723), 311 states have call successors, (311), 155 states have call predecessors, (311), 155 states have return successors, (311), 300 states have call predecessors, (311), 311 states have call successors, (311) [2023-12-16 17:56:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2345 transitions. [2023-12-16 17:56:56,475 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2345 transitions. Word has length 97 [2023-12-16 17:56:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:56,476 INFO L495 AbstractCegarLoop]: Abstraction has 1770 states and 2345 transitions. [2023-12-16 17:56:56,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2345 transitions. [2023-12-16 17:56:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:56:56,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:56,477 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:56,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:56,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:56,680 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:56,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1142165412, now seen corresponding path program 1 times [2023-12-16 17:56:56,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:56,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259483652] [2023-12-16 17:56:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:56,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:56,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:56,682 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:56,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:56:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:56,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:56,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:56,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:56,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:56,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259483652] [2023-12-16 17:56:56,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259483652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:56,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:56,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:56,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354382809] [2023-12-16 17:56:56,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:56,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:56,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:56,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:56,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:56,778 INFO L87 Difference]: Start difference. First operand 1770 states and 2345 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:56,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:56,930 INFO L93 Difference]: Finished difference Result 3417 states and 4565 transitions. [2023-12-16 17:56:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:56,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 102 [2023-12-16 17:56:56,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:56,937 INFO L225 Difference]: With dead ends: 3417 [2023-12-16 17:56:56,938 INFO L226 Difference]: Without dead ends: 1866 [2023-12-16 17:56:56,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:56,942 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 8 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:56,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 726 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2023-12-16 17:56:57,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1842. [2023-12-16 17:56:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1363 states have (on average 1.3081438004402055) internal successors, (1783), 1374 states have internal predecessors, (1783), 311 states have call successors, (311), 167 states have call predecessors, (311), 167 states have return successors, (311), 300 states have call predecessors, (311), 311 states have call successors, (311) [2023-12-16 17:56:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2405 transitions. [2023-12-16 17:56:57,092 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2405 transitions. Word has length 102 [2023-12-16 17:56:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:57,093 INFO L495 AbstractCegarLoop]: Abstraction has 1842 states and 2405 transitions. [2023-12-16 17:56:57,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2405 transitions. [2023-12-16 17:56:57,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:56:57,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:57,094 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:57,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:57,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:57,294 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:57,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash 404410691, now seen corresponding path program 1 times [2023-12-16 17:56:57,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:57,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653588172] [2023-12-16 17:56:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:57,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:57,296 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:57,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:56:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:57,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:57,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:57,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:57,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:57,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653588172] [2023-12-16 17:56:57,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653588172] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:57,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:57,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:57,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013404868] [2023-12-16 17:56:57,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:57,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:57,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:57,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:57,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:57,632 INFO L87 Difference]: Start difference. First operand 1842 states and 2405 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:57,977 INFO L93 Difference]: Finished difference Result 3709 states and 4916 transitions. [2023-12-16 17:56:57,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:57,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2023-12-16 17:56:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:57,986 INFO L225 Difference]: With dead ends: 3709 [2023-12-16 17:56:57,986 INFO L226 Difference]: Without dead ends: 2050 [2023-12-16 17:56:57,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:57,990 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 192 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:57,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1388 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:57,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-12-16 17:56:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1821. [2023-12-16 17:56:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1348 states have (on average 1.304154302670623) internal successors, (1758), 1359 states have internal predecessors, (1758), 305 states have call successors, (305), 167 states have call predecessors, (305), 167 states have return successors, (305), 294 states have call predecessors, (305), 305 states have call successors, (305) [2023-12-16 17:56:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2368 transitions. [2023-12-16 17:56:58,175 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2368 transitions. Word has length 105 [2023-12-16 17:56:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:58,176 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2368 transitions. [2023-12-16 17:56:58,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2368 transitions. [2023-12-16 17:56:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:56:58,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:58,177 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:58,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:58,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:58,380 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:58,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash -3858027, now seen corresponding path program 1 times [2023-12-16 17:56:58,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:58,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256136368] [2023-12-16 17:56:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:58,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:58,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:58,382 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:58,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:56:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:58,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:58,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:58,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:58,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:58,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256136368] [2023-12-16 17:56:58,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256136368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:58,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:58,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633543283] [2023-12-16 17:56:58,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:58,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:58,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:58,500 INFO L87 Difference]: Start difference. First operand 1821 states and 2368 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:58,812 INFO L93 Difference]: Finished difference Result 2591 states and 3571 transitions. [2023-12-16 17:56:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 108 [2023-12-16 17:56:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:58,823 INFO L225 Difference]: With dead ends: 2591 [2023-12-16 17:56:58,823 INFO L226 Difference]: Without dead ends: 2589 [2023-12-16 17:56:58,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:58,825 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 180 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:58,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1590 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2023-12-16 17:56:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 1816. [2023-12-16 17:56:59,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1341 states have (on average 1.3057419835943327) internal successors, (1751), 1353 states have internal predecessors, (1751), 306 states have call successors, (306), 168 states have call predecessors, (306), 168 states have return successors, (306), 294 states have call predecessors, (306), 306 states have call successors, (306) [2023-12-16 17:56:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2363 transitions. [2023-12-16 17:56:59,028 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2363 transitions. Word has length 108 [2023-12-16 17:56:59,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:59,029 INFO L495 AbstractCegarLoop]: Abstraction has 1816 states and 2363 transitions. [2023-12-16 17:56:59,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2363 transitions. [2023-12-16 17:56:59,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:56:59,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:59,031 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:59,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:59,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:59,234 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:59,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1417478812, now seen corresponding path program 1 times [2023-12-16 17:56:59,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:59,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768422824] [2023-12-16 17:56:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:59,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:59,235 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:59,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:56:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:59,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:59,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:59,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:56:59,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:59,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768422824] [2023-12-16 17:56:59,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768422824] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:59,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:59,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-16 17:56:59,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423834710] [2023-12-16 17:56:59,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:59,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:59,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:59,591 INFO L87 Difference]: Start difference. First operand 1816 states and 2363 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:56:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:59,856 INFO L93 Difference]: Finished difference Result 3433 states and 4515 transitions. [2023-12-16 17:56:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2023-12-16 17:56:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:59,862 INFO L225 Difference]: With dead ends: 3433 [2023-12-16 17:56:59,862 INFO L226 Difference]: Without dead ends: 1839 [2023-12-16 17:56:59,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:56:59,866 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 154 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:59,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1419 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2023-12-16 17:57:00,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1614. [2023-12-16 17:57:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1197 states have (on average 1.2974101921470342) internal successors, (1553), 1208 states have internal predecessors, (1553), 268 states have call successors, (268), 148 states have call predecessors, (268), 148 states have return successors, (268), 257 states have call predecessors, (268), 268 states have call successors, (268) [2023-12-16 17:57:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2089 transitions. [2023-12-16 17:57:00,006 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2089 transitions. Word has length 111 [2023-12-16 17:57:00,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:00,008 INFO L495 AbstractCegarLoop]: Abstraction has 1614 states and 2089 transitions. [2023-12-16 17:57:00,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:57:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2089 transitions. [2023-12-16 17:57:00,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 17:57:00,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:00,011 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:00,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:00,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:00,214 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:00,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -510071834, now seen corresponding path program 1 times [2023-12-16 17:57:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:00,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942287024] [2023-12-16 17:57:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:00,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:00,216 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:00,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 17:57:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:00,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:00,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:00,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:57:00,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:00,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942287024] [2023-12-16 17:57:00,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942287024] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:00,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:00,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882386907] [2023-12-16 17:57:00,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:00,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:00,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:00,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:00,943 INFO L87 Difference]: Start difference. First operand 1614 states and 2089 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:02,263 INFO L93 Difference]: Finished difference Result 3464 states and 4547 transitions. [2023-12-16 17:57:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:57:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 166 [2023-12-16 17:57:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:02,269 INFO L225 Difference]: With dead ends: 3464 [2023-12-16 17:57:02,269 INFO L226 Difference]: Without dead ends: 2080 [2023-12-16 17:57:02,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 327 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:57:02,273 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1064 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:02,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 1592 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:57:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2023-12-16 17:57:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1954. [2023-12-16 17:57:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1447 states have (on average 1.2971665514858328) internal successors, (1877), 1460 states have internal predecessors, (1877), 323 states have call successors, (323), 183 states have call predecessors, (323), 183 states have return successors, (323), 310 states have call predecessors, (323), 323 states have call successors, (323) [2023-12-16 17:57:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2523 transitions. [2023-12-16 17:57:02,481 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2523 transitions. Word has length 166 [2023-12-16 17:57:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:02,482 INFO L495 AbstractCegarLoop]: Abstraction has 1954 states and 2523 transitions. [2023-12-16 17:57:02,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2523 transitions. [2023-12-16 17:57:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 17:57:02,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:02,486 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:02,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:02,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:02,690 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:02,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:02,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1717090798, now seen corresponding path program 1 times [2023-12-16 17:57:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:02,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949573987] [2023-12-16 17:57:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:02,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:02,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:02,692 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:02,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 17:57:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:02,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:02,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 72 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:03,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:57:03,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:03,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949573987] [2023-12-16 17:57:03,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949573987] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:03,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:03,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:03,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173432633] [2023-12-16 17:57:03,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:03,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:03,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:03,421 INFO L87 Difference]: Start difference. First operand 1954 states and 2523 transitions. Second operand has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:04,749 INFO L93 Difference]: Finished difference Result 3758 states and 4919 transitions. [2023-12-16 17:57:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 17:57:04,749 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 167 [2023-12-16 17:57:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:04,754 INFO L225 Difference]: With dead ends: 3758 [2023-12-16 17:57:04,755 INFO L226 Difference]: Without dead ends: 2045 [2023-12-16 17:57:04,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 325 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2023-12-16 17:57:04,758 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 1229 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:04,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2966 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:57:04,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-12-16 17:57:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1989. [2023-12-16 17:57:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1480 states have (on average 1.2966216216216215) internal successors, (1919), 1493 states have internal predecessors, (1919), 324 states have call successors, (324), 184 states have call predecessors, (324), 184 states have return successors, (324), 311 states have call predecessors, (324), 324 states have call successors, (324) [2023-12-16 17:57:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2567 transitions. [2023-12-16 17:57:05,040 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2567 transitions. Word has length 167 [2023-12-16 17:57:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:05,040 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 2567 transitions. [2023-12-16 17:57:05,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2567 transitions. [2023-12-16 17:57:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 17:57:05,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:05,043 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:05,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:05,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:05,247 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:05,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash -348072661, now seen corresponding path program 1 times [2023-12-16 17:57:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:05,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842818667] [2023-12-16 17:57:05,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:05,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:05,248 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:05,249 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 (32)] Waiting until timeout for monitored process [2023-12-16 17:57:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:05,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:05,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:05,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:57:05,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:05,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842818667] [2023-12-16 17:57:05,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842818667] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:05,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:05,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-16 17:57:05,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780163336] [2023-12-16 17:57:05,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:05,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:05,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:05,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:05,693 INFO L87 Difference]: Start difference. First operand 1989 states and 2567 transitions. Second operand has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:06,346 INFO L93 Difference]: Finished difference Result 3928 states and 5137 transitions. [2023-12-16 17:57:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:57:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 168 [2023-12-16 17:57:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:06,353 INFO L225 Difference]: With dead ends: 3928 [2023-12-16 17:57:06,353 INFO L226 Difference]: Without dead ends: 2180 [2023-12-16 17:57:06,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:57:06,357 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 937 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:06,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1512 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:57:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2023-12-16 17:57:06,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2160. [2023-12-16 17:57:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2160 states, 1623 states have (on average 1.2951324707332101) internal successors, (2102), 1636 states have internal predecessors, (2102), 338 states have call successors, (338), 198 states have call predecessors, (338), 198 states have return successors, (338), 325 states have call predecessors, (338), 338 states have call successors, (338) [2023-12-16 17:57:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 2778 transitions. [2023-12-16 17:57:06,686 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 2778 transitions. Word has length 168 [2023-12-16 17:57:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:06,687 INFO L495 AbstractCegarLoop]: Abstraction has 2160 states and 2778 transitions. [2023-12-16 17:57:06,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 2778 transitions. [2023-12-16 17:57:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 17:57:06,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:06,690 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:06,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-16 17:57:06,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,893 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:06,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash -73958584, now seen corresponding path program 1 times [2023-12-16 17:57:06,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:06,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431879876] [2023-12-16 17:57:06,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:06,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:06,895 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:06,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 17:57:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:07,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:07,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:07,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:57:07,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:07,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431879876] [2023-12-16 17:57:07,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431879876] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:07,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:07,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-16 17:57:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636798213] [2023-12-16 17:57:07,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:07,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:57:07,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:57:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:57:07,421 INFO L87 Difference]: Start difference. First operand 2160 states and 2778 transitions. Second operand has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:08,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:08,446 INFO L93 Difference]: Finished difference Result 4602 states and 5996 transitions. [2023-12-16 17:57:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 17:57:08,446 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 169 [2023-12-16 17:57:08,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:08,452 INFO L225 Difference]: With dead ends: 4602 [2023-12-16 17:57:08,452 INFO L226 Difference]: Without dead ends: 2683 [2023-12-16 17:57:08,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-16 17:57:08,456 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 883 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:08,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1715 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2023-12-16 17:57:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2661. [2023-12-16 17:57:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2028 states have (on average 1.297337278106509) internal successors, (2631), 2041 states have internal predecessors, (2631), 391 states have call successors, (391), 241 states have call predecessors, (391), 241 states have return successors, (391), 378 states have call predecessors, (391), 391 states have call successors, (391) [2023-12-16 17:57:08,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3413 transitions. [2023-12-16 17:57:08,864 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3413 transitions. Word has length 169 [2023-12-16 17:57:08,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:08,865 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 3413 transitions. [2023-12-16 17:57:08,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.846153846153847) internal successors, (206), 13 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3413 transitions. [2023-12-16 17:57:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 17:57:08,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:08,868 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:08,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:09,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:09,072 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:09,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash -523326661, now seen corresponding path program 1 times [2023-12-16 17:57:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:09,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070817642] [2023-12-16 17:57:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:09,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:09,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:09,076 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:09,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 17:57:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:09,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:09,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:09,297 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:57:09,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:09,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:09,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070817642] [2023-12-16 17:57:09,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070817642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:09,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:09,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:09,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522500989] [2023-12-16 17:57:09,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:09,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:09,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:09,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:09,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:09,299 INFO L87 Difference]: Start difference. First operand 2661 states and 3413 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:57:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:10,291 INFO L93 Difference]: Finished difference Result 8379 states and 11132 transitions. [2023-12-16 17:57:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:57:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 172 [2023-12-16 17:57:10,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:10,306 INFO L225 Difference]: With dead ends: 8379 [2023-12-16 17:57:10,306 INFO L226 Difference]: Without dead ends: 5970 [2023-12-16 17:57:10,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:10,312 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 308 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:10,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1814 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2023-12-16 17:57:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 4037. [2023-12-16 17:57:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4037 states, 3018 states have (on average 1.2992047713717694) internal successors, (3921), 3041 states have internal predecessors, (3921), 649 states have call successors, (649), 369 states have call predecessors, (649), 369 states have return successors, (649), 626 states have call predecessors, (649), 649 states have call successors, (649) [2023-12-16 17:57:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 5219 transitions. [2023-12-16 17:57:10,963 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 5219 transitions. Word has length 172 [2023-12-16 17:57:10,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:10,963 INFO L495 AbstractCegarLoop]: Abstraction has 4037 states and 5219 transitions. [2023-12-16 17:57:10,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:57:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 5219 transitions. [2023-12-16 17:57:10,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 17:57:10,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:10,969 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:10,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:11,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:11,172 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:11,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 507440032, now seen corresponding path program 1 times [2023-12-16 17:57:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864211201] [2023-12-16 17:57:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:11,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:11,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:11,174 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:11,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 17:57:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:11,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:11,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:57:11,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:57:11,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:11,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864211201] [2023-12-16 17:57:11,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864211201] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:11,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:11,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:57:11,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933834783] [2023-12-16 17:57:11,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:11,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:57:11,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:57:11,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:57:11,496 INFO L87 Difference]: Start difference. First operand 4037 states and 5219 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:57:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:12,319 INFO L93 Difference]: Finished difference Result 8573 states and 11311 transitions. [2023-12-16 17:57:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:57:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 173 [2023-12-16 17:57:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:12,333 INFO L225 Difference]: With dead ends: 8573 [2023-12-16 17:57:12,333 INFO L226 Difference]: Without dead ends: 4732 [2023-12-16 17:57:12,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:57:12,340 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 159 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:12,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1846 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:12,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2023-12-16 17:57:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4037. [2023-12-16 17:57:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4037 states, 3018 states have (on average 1.298542080848244) internal successors, (3919), 3041 states have internal predecessors, (3919), 649 states have call successors, (649), 369 states have call predecessors, (649), 369 states have return successors, (649), 626 states have call predecessors, (649), 649 states have call successors, (649) [2023-12-16 17:57:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 5217 transitions. [2023-12-16 17:57:13,082 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 5217 transitions. Word has length 173 [2023-12-16 17:57:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:13,082 INFO L495 AbstractCegarLoop]: Abstraction has 4037 states and 5217 transitions. [2023-12-16 17:57:13,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 7 states have internal predecessors, (141), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:57:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 5217 transitions. [2023-12-16 17:57:13,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 17:57:13,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:13,087 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:13,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:13,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:13,291 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:13,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1116956278, now seen corresponding path program 1 times [2023-12-16 17:57:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:13,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204143513] [2023-12-16 17:57:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:13,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:13,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:13,293 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:13,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 17:57:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:13,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:13,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 61 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:57:13,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:57:13,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:13,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204143513] [2023-12-16 17:57:13,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204143513] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:13,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:13,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699363897] [2023-12-16 17:57:13,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:13,747 INFO L87 Difference]: Start difference. First operand 4037 states and 5217 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:15,415 INFO L93 Difference]: Finished difference Result 11771 states and 15556 transitions. [2023-12-16 17:57:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:15,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) Word has length 178 [2023-12-16 17:57:15,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:15,438 INFO L225 Difference]: With dead ends: 11771 [2023-12-16 17:57:15,438 INFO L226 Difference]: Without dead ends: 7986 [2023-12-16 17:57:15,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:15,448 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 787 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:15,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2828 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2023-12-16 17:57:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 6801. [2023-12-16 17:57:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6801 states, 5010 states have (on average 1.2994011976047903) internal successors, (6510), 5053 states have internal predecessors, (6510), 1165 states have call successors, (1165), 625 states have call predecessors, (1165), 625 states have return successors, (1165), 1122 states have call predecessors, (1165), 1165 states have call successors, (1165) [2023-12-16 17:57:16,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6801 states to 6801 states and 8840 transitions. [2023-12-16 17:57:16,598 INFO L78 Accepts]: Start accepts. Automaton has 6801 states and 8840 transitions. Word has length 178 [2023-12-16 17:57:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:16,600 INFO L495 AbstractCegarLoop]: Abstraction has 6801 states and 8840 transitions. [2023-12-16 17:57:16,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6801 states and 8840 transitions. [2023-12-16 17:57:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:57:16,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:16,605 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:16,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:16,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:16,809 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:16,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1650015761, now seen corresponding path program 1 times [2023-12-16 17:57:16,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:16,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710769688] [2023-12-16 17:57:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:16,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:16,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:16,811 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:16,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-16 17:57:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:16,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:16,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 82 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:17,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:17,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710769688] [2023-12-16 17:57:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710769688] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:17,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:17,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257680732] [2023-12-16 17:57:17,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:17,519 INFO L87 Difference]: Start difference. First operand 6801 states and 8840 transitions. Second operand has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:19,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:19,741 INFO L93 Difference]: Finished difference Result 14822 states and 19335 transitions. [2023-12-16 17:57:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 17:57:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 180 [2023-12-16 17:57:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:19,766 INFO L225 Difference]: With dead ends: 14822 [2023-12-16 17:57:19,766 INFO L226 Difference]: Without dead ends: 8273 [2023-12-16 17:57:19,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=667, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:57:19,778 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 1110 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:19,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 3077 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:57:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8273 states. [2023-12-16 17:57:21,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8273 to 7604. [2023-12-16 17:57:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7604 states, 5597 states have (on average 1.2992674647132392) internal successors, (7272), 5646 states have internal predecessors, (7272), 1305 states have call successors, (1305), 701 states have call predecessors, (1305), 701 states have return successors, (1305), 1256 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-12-16 17:57:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 9882 transitions. [2023-12-16 17:57:21,047 INFO L78 Accepts]: Start accepts. Automaton has 7604 states and 9882 transitions. Word has length 180 [2023-12-16 17:57:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:21,048 INFO L495 AbstractCegarLoop]: Abstraction has 7604 states and 9882 transitions. [2023-12-16 17:57:21,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7604 states and 9882 transitions. [2023-12-16 17:57:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 17:57:21,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:21,052 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:21,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-16 17:57:21,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:21,252 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:21,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash -941639552, now seen corresponding path program 1 times [2023-12-16 17:57:21,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:21,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23699391] [2023-12-16 17:57:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:21,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:21,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:21,254 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:21,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 17:57:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:21,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:21,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:21,450 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:21,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:21,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:21,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23699391] [2023-12-16 17:57:21,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23699391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:21,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:21,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:21,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879901242] [2023-12-16 17:57:21,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:21,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:21,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:21,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:21,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:21,452 INFO L87 Difference]: Start difference. First operand 7604 states and 9882 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:23,217 INFO L93 Difference]: Finished difference Result 16640 states and 22203 transitions. [2023-12-16 17:57:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:23,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2023-12-16 17:57:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:23,244 INFO L225 Difference]: With dead ends: 16640 [2023-12-16 17:57:23,244 INFO L226 Difference]: Without dead ends: 9288 [2023-12-16 17:57:23,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:57:23,256 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 543 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:23,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1358 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9288 states. [2023-12-16 17:57:24,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9288 to 7592. [2023-12-16 17:57:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 5585 states have (on average 1.2956132497761863) internal successors, (7236), 5634 states have internal predecessors, (7236), 1305 states have call successors, (1305), 701 states have call predecessors, (1305), 701 states have return successors, (1305), 1256 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-12-16 17:57:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 9846 transitions. [2023-12-16 17:57:24,515 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 9846 transitions. Word has length 180 [2023-12-16 17:57:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:24,516 INFO L495 AbstractCegarLoop]: Abstraction has 7592 states and 9846 transitions. [2023-12-16 17:57:24,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 9846 transitions. [2023-12-16 17:57:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 17:57:24,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:24,520 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:24,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 17:57:24,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:24,723 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:24,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash -39670493, now seen corresponding path program 1 times [2023-12-16 17:57:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339067690] [2023-12-16 17:57:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:24,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:24,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:24,725 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:24,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 17:57:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:24,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:24,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 79 proven. 12 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:25,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:25,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:25,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339067690] [2023-12-16 17:57:25,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339067690] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:25,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:25,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:25,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743091309] [2023-12-16 17:57:25,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:25,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:25,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:25,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:25,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:25,499 INFO L87 Difference]: Start difference. First operand 7592 states and 9846 transitions. Second operand has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:27,857 INFO L93 Difference]: Finished difference Result 15122 states and 19685 transitions. [2023-12-16 17:57:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:57:27,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 181 [2023-12-16 17:57:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:27,881 INFO L225 Difference]: With dead ends: 15122 [2023-12-16 17:57:27,881 INFO L226 Difference]: Without dead ends: 7782 [2023-12-16 17:57:27,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 355 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:57:27,892 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1310 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:27,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2884 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 17:57:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2023-12-16 17:57:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 7628. [2023-12-16 17:57:29,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7628 states, 5619 states have (on average 1.2956042000355936) internal successors, (7280), 5668 states have internal predecessors, (7280), 1306 states have call successors, (1306), 702 states have call predecessors, (1306), 702 states have return successors, (1306), 1257 states have call predecessors, (1306), 1306 states have call successors, (1306) [2023-12-16 17:57:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7628 states to 7628 states and 9892 transitions. [2023-12-16 17:57:29,148 INFO L78 Accepts]: Start accepts. Automaton has 7628 states and 9892 transitions. Word has length 181 [2023-12-16 17:57:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:29,149 INFO L495 AbstractCegarLoop]: Abstraction has 7628 states and 9892 transitions. [2023-12-16 17:57:29,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7628 states and 9892 transitions. [2023-12-16 17:57:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:57:29,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:29,153 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:29,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-16 17:57:29,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:29,354 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:29,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1416391818, now seen corresponding path program 1 times [2023-12-16 17:57:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696351486] [2023-12-16 17:57:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:29,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:29,356 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:29,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 17:57:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:29,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:29,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 17:57:29,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:29,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:29,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696351486] [2023-12-16 17:57:29,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696351486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:29,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:29,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888703484] [2023-12-16 17:57:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:29,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:29,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:29,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:29,561 INFO L87 Difference]: Start difference. First operand 7628 states and 9892 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:31,172 INFO L93 Difference]: Finished difference Result 15772 states and 20705 transitions. [2023-12-16 17:57:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:31,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2023-12-16 17:57:31,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:31,200 INFO L225 Difference]: With dead ends: 15772 [2023-12-16 17:57:31,200 INFO L226 Difference]: Without dead ends: 8368 [2023-12-16 17:57:31,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:57:31,214 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 494 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:31,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1631 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8368 states. [2023-12-16 17:57:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8368 to 7628. [2023-12-16 17:57:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7628 states, 5619 states have (on average 1.2925787506673785) internal successors, (7263), 5668 states have internal predecessors, (7263), 1306 states have call successors, (1306), 702 states have call predecessors, (1306), 702 states have return successors, (1306), 1257 states have call predecessors, (1306), 1306 states have call successors, (1306) [2023-12-16 17:57:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7628 states to 7628 states and 9875 transitions. [2023-12-16 17:57:32,434 INFO L78 Accepts]: Start accepts. Automaton has 7628 states and 9875 transitions. Word has length 182 [2023-12-16 17:57:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:32,434 INFO L495 AbstractCegarLoop]: Abstraction has 7628 states and 9875 transitions. [2023-12-16 17:57:32,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7628 states and 9875 transitions. [2023-12-16 17:57:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:57:32,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:32,438 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:32,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-16 17:57:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:32,640 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:32,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash -776522475, now seen corresponding path program 1 times [2023-12-16 17:57:32,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:32,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134523874] [2023-12-16 17:57:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:32,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:32,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:32,642 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:32,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-16 17:57:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:32,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:57:32,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 17:57:32,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:32,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:32,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134523874] [2023-12-16 17:57:32,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134523874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:32,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:32,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:57:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004419785] [2023-12-16 17:57:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:32,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:57:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:57:32,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:57:32,830 INFO L87 Difference]: Start difference. First operand 7628 states and 9875 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:34,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:34,238 INFO L93 Difference]: Finished difference Result 16881 states and 21966 transitions. [2023-12-16 17:57:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:57:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 182 [2023-12-16 17:57:34,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:34,267 INFO L225 Difference]: With dead ends: 16881 [2023-12-16 17:57:34,267 INFO L226 Difference]: Without dead ends: 9505 [2023-12-16 17:57:34,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:57:34,282 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 177 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:34,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1061 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:34,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9505 states. [2023-12-16 17:57:35,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9505 to 8982. [2023-12-16 17:57:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 6610 states have (on average 1.2921331316187594) internal successors, (8541), 6668 states have internal predecessors, (8541), 1547 states have call successors, (1547), 824 states have call predecessors, (1547), 824 states have return successors, (1547), 1489 states have call predecessors, (1547), 1547 states have call successors, (1547) [2023-12-16 17:57:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 11635 transitions. [2023-12-16 17:57:35,675 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 11635 transitions. Word has length 182 [2023-12-16 17:57:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:35,675 INFO L495 AbstractCegarLoop]: Abstraction has 8982 states and 11635 transitions. [2023-12-16 17:57:35,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 11635 transitions. [2023-12-16 17:57:35,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 17:57:35,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:35,679 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:35,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-16 17:57:35,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:35,880 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:35,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:35,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1105667294, now seen corresponding path program 1 times [2023-12-16 17:57:35,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:35,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265504382] [2023-12-16 17:57:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:35,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:35,882 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:35,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-16 17:57:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:36,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:36,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:36,182 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 39 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:57:36,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-16 17:57:36,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:36,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265504382] [2023-12-16 17:57:36,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265504382] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:36,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:36,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:36,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922158678] [2023-12-16 17:57:36,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:36,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:36,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:36,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:36,317 INFO L87 Difference]: Start difference. First operand 8982 states and 11635 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:38,098 INFO L93 Difference]: Finished difference Result 18027 states and 23295 transitions. [2023-12-16 17:57:38,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:38,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 183 [2023-12-16 17:57:38,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:38,118 INFO L225 Difference]: With dead ends: 18027 [2023-12-16 17:57:38,119 INFO L226 Difference]: Without dead ends: 9297 [2023-12-16 17:57:38,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:38,131 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 803 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:38,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2186 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:57:38,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2023-12-16 17:57:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 7037. [2023-12-16 17:57:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 5214 states have (on average 1.2874952052167241) internal successors, (6713), 5259 states have internal predecessors, (6713), 1169 states have call successors, (1169), 653 states have call predecessors, (1169), 653 states have return successors, (1169), 1124 states have call predecessors, (1169), 1169 states have call successors, (1169) [2023-12-16 17:57:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 9051 transitions. [2023-12-16 17:57:39,252 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 9051 transitions. Word has length 183 [2023-12-16 17:57:39,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:39,252 INFO L495 AbstractCegarLoop]: Abstraction has 7037 states and 9051 transitions. [2023-12-16 17:57:39,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:39,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 9051 transitions. [2023-12-16 17:57:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-16 17:57:39,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:39,255 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:39,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-16 17:57:39,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:39,456 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:39,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:39,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1185219034, now seen corresponding path program 1 times [2023-12-16 17:57:39,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:39,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470194577] [2023-12-16 17:57:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:39,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:39,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:39,458 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:39,459 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 (43)] Waiting until timeout for monitored process [2023-12-16 17:57:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:39,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:39,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:57:39,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 17:57:39,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470194577] [2023-12-16 17:57:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470194577] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:39,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:39,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:39,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583348793] [2023-12-16 17:57:39,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:39,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:39,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:39,863 INFO L87 Difference]: Start difference. First operand 7037 states and 9051 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:41,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:41,786 INFO L93 Difference]: Finished difference Result 16391 states and 21160 transitions. [2023-12-16 17:57:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 186 [2023-12-16 17:57:41,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:41,803 INFO L225 Difference]: With dead ends: 16391 [2023-12-16 17:57:41,803 INFO L226 Difference]: Without dead ends: 9606 [2023-12-16 17:57:41,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:41,811 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 990 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:41,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1931 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:41,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9606 states. Received shutdown request... [2023-12-16 17:57:42,538 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:42,538 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9606 to 7037. [2023-12-16 17:57:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 5214 states have (on average 1.2825086306098965) internal successors, (6687), 5259 states have internal predecessors, (6687), 1169 states have call successors, (1169), 653 states have call predecessors, (1169), 653 states have return successors, (1169), 1124 states have call predecessors, (1169), 1169 states have call successors, (1169) [2023-12-16 17:57:43,085 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:57:43,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-16 17:57:43,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:43,287 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:57:43,290 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:43,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:57:43,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:57:43 BoogieIcfgContainer [2023-12-16 17:57:43,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:57:43,296 INFO L158 Benchmark]: Toolchain (without parser) took 64192.73ms. Allocated memory was 190.8MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 142.9MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:57:43,296 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory was 144.3MB in the beginning and 144.1MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:57:43,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.19ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 124.0MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 17:57:43,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.85ms. Allocated memory is still 190.8MB. Free memory was 124.0MB in the beginning and 120.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:57:43,297 INFO L158 Benchmark]: Boogie Preprocessor took 72.18ms. Allocated memory is still 190.8MB. Free memory was 120.9MB in the beginning and 116.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:57:43,297 INFO L158 Benchmark]: RCFGBuilder took 796.65ms. Allocated memory was 190.8MB in the beginning and 280.0MB in the end (delta: 89.1MB). Free memory was 116.7MB in the beginning and 224.6MB in the end (delta: -107.9MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. [2023-12-16 17:57:43,297 INFO L158 Benchmark]: TraceAbstraction took 62868.24ms. Allocated memory was 280.0MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 224.0MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:57:43,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory was 144.3MB in the beginning and 144.1MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.19ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 124.0MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.85ms. Allocated memory is still 190.8MB. Free memory was 124.0MB in the beginning and 120.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.18ms. Allocated memory is still 190.8MB. Free memory was 120.9MB in the beginning and 116.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 796.65ms. Allocated memory was 190.8MB in the beginning and 280.0MB in the end (delta: 89.1MB). Free memory was 116.7MB in the beginning and 224.6MB in the end (delta: -107.9MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. * TraceAbstraction took 62868.24ms. Allocated memory was 280.0MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 224.0MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 618]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 618). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 170 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.8s, OverallIterations: 42, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16319 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16145 mSDsluCounter, 57558 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44166 mSDsCounter, 3468 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10326 IncrementalHoareTripleChecker+Invalid, 13794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3468 mSolverCounterUnsat, 13392 mSDtfsCounter, 10326 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7135 GetRequests, 6687 SyntacticMatches, 22 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8982occurred in iteration=40, InterpolantAutomatonStates: 399, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.2s AutomataMinimizationTime, 42 MinimizatonAttempts, 13487 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 4574 NumberOfCodeBlocks, 4574 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 6830 ConstructedInterpolants, 0 QuantifiedInterpolants, 21099 SizeOfPredicates, 76 NumberOfNonLiveVariables, 11005 ConjunctsInSsa, 225 ConjunctsInUnsatCore, 58 InterpolantComputations, 31 PerfectInterpolantSequences, 3223/3616 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown