/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:15:47,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:15:47,737 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 18:15:47,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:15:47,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:15:47,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:15:47,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:15:47,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:15:47,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:15:47,770 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:15:47,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:15:47,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:15:47,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:15:47,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:15:47,772 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:15:47,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:15:47,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:15:47,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:15:47,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:15:47,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:15:47,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:15:47,774 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:15:47,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:15:47,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:15:47,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:15:47,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:15:47,776 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:15:47,777 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:15:47,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:15:47,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:15:47,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:15:47,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:15:47,967 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:15:47,968 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:15:47,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-16 18:15:48,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:15:49,152 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:15:49,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-16 18:15:49,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcdfbcf31/83d579369d664bd883a8427bee8596fd/FLAGbeb3ea26b [2023-12-16 18:15:49,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcdfbcf31/83d579369d664bd883a8427bee8596fd [2023-12-16 18:15:49,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:15:49,192 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:15:49,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:15:49,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:15:49,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:15:49,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ec27dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49, skipping insertion in model container [2023-12-16 18:15:49,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:15:49,418 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12984,12997] [2023-12-16 18:15:49,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:15:49,499 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:15:49,567 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12984,12997] [2023-12-16 18:15:49,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:15:49,609 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:15:49,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49 WrapperNode [2023-12-16 18:15:49,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:15:49,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:15:49,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:15:49,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:15:49,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,663 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1331 [2023-12-16 18:15:49,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:15:49,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:15:49,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:15:49,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:15:49,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,708 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 18:15:49,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:15:49,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:15:49,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:15:49,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:15:49,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (1/1) ... [2023-12-16 18:15:49,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:15:49,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:15:49,763 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 18:15:49,778 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 18:15:49,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:15:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:15:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:15:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:15:49,940 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:15:49,942 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:15:50,714 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:15:50,754 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:15:50,754 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 18:15:50,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:15:50 BoogieIcfgContainer [2023-12-16 18:15:50,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:15:50,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:15:50,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:15:50,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:15:50,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:15:49" (1/3) ... [2023-12-16 18:15:50,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8a3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:15:50, skipping insertion in model container [2023-12-16 18:15:50,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:15:49" (2/3) ... [2023-12-16 18:15:50,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8a3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:15:50, skipping insertion in model container [2023-12-16 18:15:50,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:15:50" (3/3) ... [2023-12-16 18:15:50,760 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-16 18:15:50,772 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:15:50,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:15:50,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:15:50,821 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;@234f77b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:15:50,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:15:50,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 324 states, 322 states have (on average 1.8012422360248448) internal successors, (580), 323 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 18:15:50,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:50,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:50,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:50,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1684200636, now seen corresponding path program 1 times [2023-12-16 18:15:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:50,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242358547] [2023-12-16 18:15:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:50,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:50,858 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 18:15:50,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:51,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:51,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:51,118 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 18:15:51,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:51,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:51,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242358547] [2023-12-16 18:15:51,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242358547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:51,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:51,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:51,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77719829] [2023-12-16 18:15:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:51,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:51,155 INFO L87 Difference]: Start difference. First operand has 324 states, 322 states have (on average 1.8012422360248448) internal successors, (580), 323 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:51,245 INFO L93 Difference]: Finished difference Result 585 states and 1017 transitions. [2023-12-16 18:15:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:51,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-16 18:15:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:51,259 INFO L225 Difference]: With dead ends: 585 [2023-12-16 18:15:51,259 INFO L226 Difference]: Without dead ends: 445 [2023-12-16 18:15:51,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 18:15:51,264 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 231 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:51,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1066 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-16 18:15:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 442. [2023-12-16 18:15:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.6621315192743764) internal successors, (733), 441 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 733 transitions. [2023-12-16 18:15:51,346 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 733 transitions. Word has length 109 [2023-12-16 18:15:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:51,347 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 733 transitions. [2023-12-16 18:15:51,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 733 transitions. [2023-12-16 18:15:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 18:15:51,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:51,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:51,360 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 18:15:51,555 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 18:15:51,555 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:51,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:51,556 INFO L85 PathProgramCache]: Analyzing trace with hash 64332195, now seen corresponding path program 1 times [2023-12-16 18:15:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:51,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689389955] [2023-12-16 18:15:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:51,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:51,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:51,558 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 18:15:51,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:15:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:51,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:51,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:51,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:51,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689389955] [2023-12-16 18:15:51,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689389955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:51,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:51,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633483860] [2023-12-16 18:15:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:51,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:51,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:51,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:51,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:51,800 INFO L87 Difference]: Start difference. First operand 442 states and 733 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:51,860 INFO L93 Difference]: Finished difference Result 1298 states and 2150 transitions. [2023-12-16 18:15:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:51,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-16 18:15:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:51,866 INFO L225 Difference]: With dead ends: 1298 [2023-12-16 18:15:51,867 INFO L226 Difference]: Without dead ends: 866 [2023-12-16 18:15:51,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 18:15:51,871 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1432 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:51,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1050 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:51,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2023-12-16 18:15:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 864. [2023-12-16 18:15:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.6500579374275781) internal successors, (1424), 863 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1424 transitions. [2023-12-16 18:15:51,901 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1424 transitions. Word has length 112 [2023-12-16 18:15:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:51,902 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1424 transitions. [2023-12-16 18:15:51,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:51,903 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1424 transitions. [2023-12-16 18:15:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 18:15:51,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:51,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:51,914 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 18:15:52,114 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 18:15:52,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:52,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1033455252, now seen corresponding path program 1 times [2023-12-16 18:15:52,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:52,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700529695] [2023-12-16 18:15:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:15:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:52,117 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 18:15:52,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:52,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:52,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:52,265 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 18:15:52,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:52,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:52,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700529695] [2023-12-16 18:15:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700529695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:52,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:52,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790427424] [2023-12-16 18:15:52,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:52,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:52,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:52,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:52,267 INFO L87 Difference]: Start difference. First operand 864 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:52,285 INFO L93 Difference]: Finished difference Result 1338 states and 2229 transitions. [2023-12-16 18:15:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-16 18:15:52,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:52,290 INFO L225 Difference]: With dead ends: 1338 [2023-12-16 18:15:52,290 INFO L226 Difference]: Without dead ends: 1075 [2023-12-16 18:15:52,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 18:15:52,291 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 205 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:52,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1202 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:52,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-12-16 18:15:52,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1073. [2023-12-16 18:15:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1072 states have (on average 1.6595149253731343) internal successors, (1779), 1072 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1779 transitions. [2023-12-16 18:15:52,308 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1779 transitions. Word has length 114 [2023-12-16 18:15:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:52,309 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1779 transitions. [2023-12-16 18:15:52,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1779 transitions. [2023-12-16 18:15:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 18:15:52,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:52,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:52,317 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 18:15:52,513 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 18:15:52,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:52,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1156377174, now seen corresponding path program 1 times [2023-12-16 18:15:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995330443] [2023-12-16 18:15:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:52,516 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 18:15:52,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:52,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:52,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:52,650 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 18:15:52,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:52,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:52,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995330443] [2023-12-16 18:15:52,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995330443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:52,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:52,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:52,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989707788] [2023-12-16 18:15:52,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:52,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:52,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:52,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:52,656 INFO L87 Difference]: Start difference. First operand 1073 states and 1779 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:52,688 INFO L93 Difference]: Finished difference Result 3184 states and 5276 transitions. [2023-12-16 18:15:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:52,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-16 18:15:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:52,695 INFO L225 Difference]: With dead ends: 3184 [2023-12-16 18:15:52,695 INFO L226 Difference]: Without dead ends: 2131 [2023-12-16 18:15:52,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 18:15:52,701 INFO L413 NwaCegarLoop]: 1044 mSDtfsCounter, 520 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:52,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1564 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2023-12-16 18:15:52,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1086. [2023-12-16 18:15:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1085 states have (on average 1.6571428571428573) internal successors, (1798), 1085 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1798 transitions. [2023-12-16 18:15:52,755 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1798 transitions. Word has length 114 [2023-12-16 18:15:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:52,755 INFO L495 AbstractCegarLoop]: Abstraction has 1086 states and 1798 transitions. [2023-12-16 18:15:52,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1798 transitions. [2023-12-16 18:15:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 18:15:52,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:52,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:52,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:15:52,964 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 18:15:52,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:52,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash -379902149, now seen corresponding path program 1 times [2023-12-16 18:15:52,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:52,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623282189] [2023-12-16 18:15:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:52,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:15:52,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:52,967 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 18:15:52,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 18:15:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:53,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:53,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:53,178 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 18:15:53,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:53,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:53,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623282189] [2023-12-16 18:15:53,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623282189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:53,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:53,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:53,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54224135] [2023-12-16 18:15:53,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:53,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:53,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:53,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:53,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:53,180 INFO L87 Difference]: Start difference. First operand 1086 states and 1798 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:53,232 INFO L93 Difference]: Finished difference Result 3169 states and 5247 transitions. [2023-12-16 18:15:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:53,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-16 18:15:53,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:53,239 INFO L225 Difference]: With dead ends: 3169 [2023-12-16 18:15:53,239 INFO L226 Difference]: Without dead ends: 2109 [2023-12-16 18:15:53,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 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 18:15:53,241 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1240 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:53,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1230 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2023-12-16 18:15:53,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2107. [2023-12-16 18:15:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 2106 states have (on average 1.647673314339981) internal successors, (3470), 2106 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 3470 transitions. [2023-12-16 18:15:53,270 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 3470 transitions. Word has length 114 [2023-12-16 18:15:53,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:53,270 INFO L495 AbstractCegarLoop]: Abstraction has 2107 states and 3470 transitions. [2023-12-16 18:15:53,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 3470 transitions. [2023-12-16 18:15:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 18:15:53,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:53,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:53,277 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 18:15:53,475 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 18:15:53,476 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:53,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash -183138836, now seen corresponding path program 1 times [2023-12-16 18:15:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:53,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110879891] [2023-12-16 18:15:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:53,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:15:53,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:53,478 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 18:15:53,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:15:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:53,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:53,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:53,582 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 18:15:53,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:53,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110879891] [2023-12-16 18:15:53,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110879891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:53,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:53,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798581065] [2023-12-16 18:15:53,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:53,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:53,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:53,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:53,584 INFO L87 Difference]: Start difference. First operand 2107 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:53,619 INFO L93 Difference]: Finished difference Result 6252 states and 10297 transitions. [2023-12-16 18:15:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 18:15:53,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:53,631 INFO L225 Difference]: With dead ends: 6252 [2023-12-16 18:15:53,631 INFO L226 Difference]: Without dead ends: 4187 [2023-12-16 18:15:53,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 18:15:53,634 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 517 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:53,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1563 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:53,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2023-12-16 18:15:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 2121. [2023-12-16 18:15:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.6443396226415095) internal successors, (3486), 2120 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3486 transitions. [2023-12-16 18:15:53,677 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 3486 transitions. Word has length 116 [2023-12-16 18:15:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:53,678 INFO L495 AbstractCegarLoop]: Abstraction has 2121 states and 3486 transitions. [2023-12-16 18:15:53,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:53,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 3486 transitions. [2023-12-16 18:15:53,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 18:15:53,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:53,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:53,692 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 18:15:53,892 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 18:15:53,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:53,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1684503133, now seen corresponding path program 1 times [2023-12-16 18:15:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944137931] [2023-12-16 18:15:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:53,894 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 18:15:53,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 18:15:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:54,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:54,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:54,130 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 18:15:54,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:54,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:54,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944137931] [2023-12-16 18:15:54,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944137931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:54,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:54,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:54,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737731631] [2023-12-16 18:15:54,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:54,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:54,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:54,132 INFO L87 Difference]: Start difference. First operand 2121 states and 3486 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:54,192 INFO L93 Difference]: Finished difference Result 6232 states and 10257 transitions. [2023-12-16 18:15:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:54,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-16 18:15:54,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:54,204 INFO L225 Difference]: With dead ends: 6232 [2023-12-16 18:15:54,204 INFO L226 Difference]: Without dead ends: 4151 [2023-12-16 18:15:54,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 18:15:54,210 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1232 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:54,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1225 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2023-12-16 18:15:54,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 4149. [2023-12-16 18:15:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 4148 states have (on average 1.636692381870781) internal successors, (6789), 4148 states have internal predecessors, (6789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6789 transitions. [2023-12-16 18:15:54,285 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6789 transitions. Word has length 117 [2023-12-16 18:15:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:54,286 INFO L495 AbstractCegarLoop]: Abstraction has 4149 states and 6789 transitions. [2023-12-16 18:15:54,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6789 transitions. [2023-12-16 18:15:54,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 18:15:54,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:54,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:54,293 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 18:15:54,493 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 18:15:54,493 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:54,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash 515815717, now seen corresponding path program 1 times [2023-12-16 18:15:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296107025] [2023-12-16 18:15:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:54,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:54,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:54,496 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 18:15:54,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:54,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:54,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:54,646 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 18:15:54,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:54,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:54,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296107025] [2023-12-16 18:15:54,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296107025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:54,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:54,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:15:54,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010131423] [2023-12-16 18:15:54,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:54,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:54,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:54,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:54,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:54,649 INFO L87 Difference]: Start difference. First operand 4149 states and 6789 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:54,727 INFO L93 Difference]: Finished difference Result 14504 states and 23597 transitions. [2023-12-16 18:15:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:15:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-16 18:15:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:54,757 INFO L225 Difference]: With dead ends: 14504 [2023-12-16 18:15:54,757 INFO L226 Difference]: Without dead ends: 10898 [2023-12-16 18:15:54,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 18:15:54,765 INFO L413 NwaCegarLoop]: 1219 mSDtfsCounter, 1206 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:54,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 2642 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:54,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2023-12-16 18:15:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 4610. [2023-12-16 18:15:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 4609 states have (on average 1.6411369060533738) internal successors, (7564), 4609 states have internal predecessors, (7564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 7564 transitions. [2023-12-16 18:15:54,866 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 7564 transitions. Word has length 118 [2023-12-16 18:15:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:54,866 INFO L495 AbstractCegarLoop]: Abstraction has 4610 states and 7564 transitions. [2023-12-16 18:15:54,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:54,866 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 7564 transitions. [2023-12-16 18:15:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 18:15:54,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:54,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:54,876 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 18:15:55,072 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 18:15:55,073 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:55,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:55,074 INFO L85 PathProgramCache]: Analyzing trace with hash 794985157, now seen corresponding path program 1 times [2023-12-16 18:15:55,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:55,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39263991] [2023-12-16 18:15:55,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:55,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:55,075 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 18:15:55,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:55,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:55,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:55,252 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 18:15:55,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:55,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:55,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39263991] [2023-12-16 18:15:55,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39263991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:55,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:55,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:55,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035140766] [2023-12-16 18:15:55,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:55,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:55,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:55,254 INFO L87 Difference]: Start difference. First operand 4610 states and 7564 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:55,311 INFO L93 Difference]: Finished difference Result 9842 states and 16274 transitions. [2023-12-16 18:15:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:55,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-16 18:15:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:55,325 INFO L225 Difference]: With dead ends: 9842 [2023-12-16 18:15:55,325 INFO L226 Difference]: Without dead ends: 7124 [2023-12-16 18:15:55,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 18:15:55,331 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 197 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:55,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1027 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:55,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2023-12-16 18:15:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 7098. [2023-12-16 18:15:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7098 states, 7097 states have (on average 1.6429477243905877) internal successors, (11660), 7097 states have internal predecessors, (11660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7098 states to 7098 states and 11660 transitions. [2023-12-16 18:15:55,429 INFO L78 Accepts]: Start accepts. Automaton has 7098 states and 11660 transitions. Word has length 119 [2023-12-16 18:15:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:55,429 INFO L495 AbstractCegarLoop]: Abstraction has 7098 states and 11660 transitions. [2023-12-16 18:15:55,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 7098 states and 11660 transitions. [2023-12-16 18:15:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 18:15:55,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:55,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:55,451 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 18:15:55,650 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 18:15:55,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:55,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash 326986462, now seen corresponding path program 1 times [2023-12-16 18:15:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:55,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361287383] [2023-12-16 18:15:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:55,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:15:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:55,653 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 18:15:55,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:55,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:55,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:55,865 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 18:15:55,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:55,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:55,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361287383] [2023-12-16 18:15:55,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361287383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:55,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:55,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764663873] [2023-12-16 18:15:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:55,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:55,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:55,867 INFO L87 Difference]: Start difference. First operand 7098 states and 11660 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:55,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:55,951 INFO L93 Difference]: Finished difference Result 20602 states and 33874 transitions. [2023-12-16 18:15:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:55,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-16 18:15:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:55,973 INFO L225 Difference]: With dead ends: 20602 [2023-12-16 18:15:55,974 INFO L226 Difference]: Without dead ends: 13738 [2023-12-16 18:15:55,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 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 18:15:55,986 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1219 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:55,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1182 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13738 states. [2023-12-16 18:15:56,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13738 to 13736. [2023-12-16 18:15:56,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13736 states, 13735 states have (on average 1.6344375682562795) internal successors, (22449), 13735 states have internal predecessors, (22449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 22449 transitions. [2023-12-16 18:15:56,211 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 22449 transitions. Word has length 122 [2023-12-16 18:15:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:56,211 INFO L495 AbstractCegarLoop]: Abstraction has 13736 states and 22449 transitions. [2023-12-16 18:15:56,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:56,212 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 22449 transitions. [2023-12-16 18:15:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 18:15:56,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:56,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:56,228 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 18:15:56,428 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 18:15:56,429 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:56,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1312860001, now seen corresponding path program 1 times [2023-12-16 18:15:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:56,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133929946] [2023-12-16 18:15:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:56,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:56,431 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 18:15:56,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 18:15:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:56,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:56,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:56,654 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 18:15:56,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:56,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:56,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133929946] [2023-12-16 18:15:56,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133929946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:56,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:56,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610981794] [2023-12-16 18:15:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:56,656 INFO L87 Difference]: Start difference. First operand 13736 states and 22449 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:56,791 INFO L93 Difference]: Finished difference Result 37920 states and 61771 transitions. [2023-12-16 18:15:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2023-12-16 18:15:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:56,835 INFO L225 Difference]: With dead ends: 37920 [2023-12-16 18:15:56,836 INFO L226 Difference]: Without dead ends: 26010 [2023-12-16 18:15:56,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 18:15:56,856 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 395 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:56,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1367 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26010 states. [2023-12-16 18:15:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26010 to 26008. [2023-12-16 18:15:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26008 states, 26007 states have (on average 1.6226785096320222) internal successors, (42201), 26007 states have internal predecessors, (42201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26008 states to 26008 states and 42201 transitions. [2023-12-16 18:15:57,319 INFO L78 Accepts]: Start accepts. Automaton has 26008 states and 42201 transitions. Word has length 124 [2023-12-16 18:15:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:57,319 INFO L495 AbstractCegarLoop]: Abstraction has 26008 states and 42201 transitions. [2023-12-16 18:15:57,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 26008 states and 42201 transitions. [2023-12-16 18:15:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 18:15:57,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:57,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:57,340 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 18:15:57,539 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 18:15:57,539 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:57,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:57,540 INFO L85 PathProgramCache]: Analyzing trace with hash -824540310, now seen corresponding path program 1 times [2023-12-16 18:15:57,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:57,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654475999] [2023-12-16 18:15:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:57,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:57,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:57,541 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 18:15:57,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 18:15:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:57,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:57,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:57,677 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 18:15:57,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:57,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:57,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654475999] [2023-12-16 18:15:57,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654475999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:57,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:57,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:57,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445422069] [2023-12-16 18:15:57,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:57,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:57,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:57,679 INFO L87 Difference]: Start difference. First operand 26008 states and 42201 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:57,794 INFO L93 Difference]: Finished difference Result 45004 states and 73691 transitions. [2023-12-16 18:15:57,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:57,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-16 18:15:57,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:57,852 INFO L225 Difference]: With dead ends: 45004 [2023-12-16 18:15:57,852 INFO L226 Difference]: Without dead ends: 34554 [2023-12-16 18:15:57,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 18:15:57,875 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 196 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:57,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:57,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34554 states. [2023-12-16 18:15:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34554 to 34552. [2023-12-16 18:15:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34552 states, 34551 states have (on average 1.6275361060461346) internal successors, (56233), 34551 states have internal predecessors, (56233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34552 states to 34552 states and 56233 transitions. [2023-12-16 18:15:58,415 INFO L78 Accepts]: Start accepts. Automaton has 34552 states and 56233 transitions. Word has length 125 [2023-12-16 18:15:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:58,415 INFO L495 AbstractCegarLoop]: Abstraction has 34552 states and 56233 transitions. [2023-12-16 18:15:58,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 34552 states and 56233 transitions. [2023-12-16 18:15:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 18:15:58,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:58,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:58,435 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 18:15:58,634 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 18:15:58,635 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:58,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash 719929843, now seen corresponding path program 1 times [2023-12-16 18:15:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162557484] [2023-12-16 18:15:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:58,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:15:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:58,637 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 18:15:58,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:15:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:58,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:58,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:58,754 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 18:15:58,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:58,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:58,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162557484] [2023-12-16 18:15:58,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162557484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:58,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:58,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:58,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926255150] [2023-12-16 18:15:58,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:58,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:58,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:58,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:58,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:58,757 INFO L87 Difference]: Start difference. First operand 34552 states and 56233 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:59,072 INFO L93 Difference]: Finished difference Result 73487 states and 119137 transitions. [2023-12-16 18:15:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:59,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-16 18:15:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:59,122 INFO L225 Difference]: With dead ends: 73487 [2023-12-16 18:15:59,123 INFO L226 Difference]: Without dead ends: 37692 [2023-12-16 18:15:59,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 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 18:15:59,155 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 1194 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 1315 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37692 states. [2023-12-16 18:15:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37692 to 37690. [2023-12-16 18:15:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37690 states, 37689 states have (on average 1.6104698983788373) internal successors, (60697), 37689 states have internal predecessors, (60697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37690 states to 37690 states and 60697 transitions. [2023-12-16 18:15:59,700 INFO L78 Accepts]: Start accepts. Automaton has 37690 states and 60697 transitions. Word has length 125 [2023-12-16 18:15:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:59,700 INFO L495 AbstractCegarLoop]: Abstraction has 37690 states and 60697 transitions. [2023-12-16 18:15:59,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37690 states and 60697 transitions. [2023-12-16 18:15:59,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 18:15:59,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:59,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:59,724 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 18:15:59,924 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 18:15:59,925 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:59,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1875119313, now seen corresponding path program 1 times [2023-12-16 18:15:59,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292399985] [2023-12-16 18:15:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:59,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:15:59,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:59,927 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 18:15:59,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:00,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:00,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:00,153 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 18:16:00,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:00,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292399985] [2023-12-16 18:16:00,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292399985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:00,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:00,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128185020] [2023-12-16 18:16:00,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:00,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:00,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:00,155 INFO L87 Difference]: Start difference. First operand 37690 states and 60697 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:00,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:00,409 INFO L93 Difference]: Finished difference Result 54752 states and 88330 transitions. [2023-12-16 18:16:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:16:00,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-16 18:16:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:00,459 INFO L225 Difference]: With dead ends: 54752 [2023-12-16 18:16:00,459 INFO L226 Difference]: Without dead ends: 37692 [2023-12-16 18:16:00,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 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 18:16:00,481 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 1335 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:00,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 1075 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37692 states. [2023-12-16 18:16:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37692 to 35262. [2023-12-16 18:16:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35262 states, 35261 states have (on average 1.6183885879583677) internal successors, (57066), 35261 states have internal predecessors, (57066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35262 states to 35262 states and 57066 transitions. [2023-12-16 18:16:00,951 INFO L78 Accepts]: Start accepts. Automaton has 35262 states and 57066 transitions. Word has length 125 [2023-12-16 18:16:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:00,951 INFO L495 AbstractCegarLoop]: Abstraction has 35262 states and 57066 transitions. [2023-12-16 18:16:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:00,952 INFO L276 IsEmpty]: Start isEmpty. Operand 35262 states and 57066 transitions. [2023-12-16 18:16:00,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 18:16:00,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:00,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:00,966 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 18:16:01,166 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 18:16:01,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:01,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1042443472, now seen corresponding path program 1 times [2023-12-16 18:16:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151800530] [2023-12-16 18:16:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:01,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:01,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:01,176 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 18:16:01,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:01,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:16:01,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:01,601 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 18:16:01,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:01,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151800530] [2023-12-16 18:16:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151800530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:01,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:01,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:01,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417652262] [2023-12-16 18:16:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:01,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:16:01,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:01,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:16:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:16:01,603 INFO L87 Difference]: Start difference. First operand 35262 states and 57066 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:01,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:01,861 INFO L93 Difference]: Finished difference Result 100625 states and 162670 transitions. [2023-12-16 18:16:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:16:01,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2023-12-16 18:16:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:01,962 INFO L225 Difference]: With dead ends: 100625 [2023-12-16 18:16:01,962 INFO L226 Difference]: Without dead ends: 68347 [2023-12-16 18:16:02,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 18:16:02,006 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 388 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:02,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1506 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:02,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68347 states. [2023-12-16 18:16:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68347 to 68345. [2023-12-16 18:16:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68345 states, 68344 states have (on average 1.6095341215029848) internal successors, (110002), 68344 states have internal predecessors, (110002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68345 states to 68345 states and 110002 transitions. [2023-12-16 18:16:02,933 INFO L78 Accepts]: Start accepts. Automaton has 68345 states and 110002 transitions. Word has length 127 [2023-12-16 18:16:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:02,933 INFO L495 AbstractCegarLoop]: Abstraction has 68345 states and 110002 transitions. [2023-12-16 18:16:02,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 68345 states and 110002 transitions. [2023-12-16 18:16:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 18:16:02,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:02,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:02,958 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 18:16:03,153 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 18:16:03,154 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:03,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:03,154 INFO L85 PathProgramCache]: Analyzing trace with hash 494737100, now seen corresponding path program 1 times [2023-12-16 18:16:03,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:03,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585181362] [2023-12-16 18:16:03,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:03,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:03,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:03,156 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 18:16:03,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:03,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:16:03,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:03,265 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 18:16:03,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:03,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:03,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585181362] [2023-12-16 18:16:03,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585181362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:03,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:03,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:03,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902109742] [2023-12-16 18:16:03,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:03,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:16:03,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:03,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:16:03,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:16:03,266 INFO L87 Difference]: Start difference. First operand 68345 states and 110002 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:04,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:04,123 INFO L93 Difference]: Finished difference Result 203393 states and 327492 transitions. [2023-12-16 18:16:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:16:04,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2023-12-16 18:16:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:04,346 INFO L225 Difference]: With dead ends: 203393 [2023-12-16 18:16:04,346 INFO L226 Difference]: Without dead ends: 135932 [2023-12-16 18:16:04,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 18:16:04,387 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 481 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:04,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1519 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135932 states. [2023-12-16 18:16:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135932 to 68590. [2023-12-16 18:16:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68590 states, 68589 states have (on average 1.6077505139308053) internal successors, (110274), 68589 states have internal predecessors, (110274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68590 states to 68590 states and 110274 transitions. [2023-12-16 18:16:05,894 INFO L78 Accepts]: Start accepts. Automaton has 68590 states and 110274 transitions. Word has length 127 [2023-12-16 18:16:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:05,895 INFO L495 AbstractCegarLoop]: Abstraction has 68590 states and 110274 transitions. [2023-12-16 18:16:05,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 68590 states and 110274 transitions. [2023-12-16 18:16:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 18:16:05,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:05,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:05,915 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 18:16:06,113 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 18:16:06,113 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:06,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -527770282, now seen corresponding path program 1 times [2023-12-16 18:16:06,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561311513] [2023-12-16 18:16:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:06,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:06,116 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 18:16:06,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:06,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:06,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:06,312 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 18:16:06,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:06,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:06,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561311513] [2023-12-16 18:16:06,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561311513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:06,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:06,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:06,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853753477] [2023-12-16 18:16:06,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:06,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:06,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:06,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:06,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:06,314 INFO L87 Difference]: Start difference. First operand 68590 states and 110274 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:06,794 INFO L93 Difference]: Finished difference Result 142968 states and 229475 transitions. [2023-12-16 18:16:06,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:16:06,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2023-12-16 18:16:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:06,900 INFO L225 Difference]: With dead ends: 142968 [2023-12-16 18:16:06,900 INFO L226 Difference]: Without dead ends: 75191 [2023-12-16 18:16:06,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 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 18:16:06,932 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 1193 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:06,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1202 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:06,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75191 states. [2023-12-16 18:16:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75191 to 69125. [2023-12-16 18:16:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69125 states, 69124 states have (on average 1.6077339274347549) internal successors, (111133), 69124 states have internal predecessors, (111133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69125 states to 69125 states and 111133 transitions. [2023-12-16 18:16:07,837 INFO L78 Accepts]: Start accepts. Automaton has 69125 states and 111133 transitions. Word has length 128 [2023-12-16 18:16:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:07,837 INFO L495 AbstractCegarLoop]: Abstraction has 69125 states and 111133 transitions. [2023-12-16 18:16:07,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 69125 states and 111133 transitions. [2023-12-16 18:16:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 18:16:07,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:07,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:07,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 18:16:08,058 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 18:16:08,058 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:08,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:08,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1042442902, now seen corresponding path program 1 times [2023-12-16 18:16:08,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:08,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635510037] [2023-12-16 18:16:08,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:08,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:08,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:08,060 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 18:16:08,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:08,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:08,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:08,212 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 18:16:08,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:08,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:08,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635510037] [2023-12-16 18:16:08,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635510037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:08,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:08,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:16:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264697600] [2023-12-16 18:16:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:08,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:08,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:08,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:08,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:08,214 INFO L87 Difference]: Start difference. First operand 69125 states and 111133 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:09,048 INFO L93 Difference]: Finished difference Result 238290 states and 382360 transitions. [2023-12-16 18:16:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:16:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2023-12-16 18:16:09,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:09,586 INFO L225 Difference]: With dead ends: 238290 [2023-12-16 18:16:09,587 INFO L226 Difference]: Without dead ends: 175088 [2023-12-16 18:16:09,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 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 18:16:09,631 INFO L413 NwaCegarLoop]: 1219 mSDtfsCounter, 1143 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:09,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2644 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175088 states. [2023-12-16 18:16:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175088 to 71998. [2023-12-16 18:16:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71998 states, 71997 states have (on average 1.604802977901857) internal successors, (115541), 71997 states have internal predecessors, (115541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71998 states to 71998 states and 115541 transitions. [2023-12-16 18:16:11,214 INFO L78 Accepts]: Start accepts. Automaton has 71998 states and 115541 transitions. Word has length 129 [2023-12-16 18:16:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:11,215 INFO L495 AbstractCegarLoop]: Abstraction has 71998 states and 115541 transitions. [2023-12-16 18:16:11,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 71998 states and 115541 transitions. [2023-12-16 18:16:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 18:16:11,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:11,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:11,241 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 18:16:11,441 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 18:16:11,441 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:11,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1086644656, now seen corresponding path program 1 times [2023-12-16 18:16:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:11,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886111828] [2023-12-16 18:16:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:11,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:11,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:11,443 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 18:16:11,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:11,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:11,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:11,585 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 18:16:11,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:11,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886111828] [2023-12-16 18:16:11,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886111828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:11,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:11,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:16:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841774289] [2023-12-16 18:16:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:11,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:11,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:11,588 INFO L87 Difference]: Start difference. First operand 71998 states and 115541 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:12,405 INFO L93 Difference]: Finished difference Result 250600 states and 401959 transitions. [2023-12-16 18:16:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:16:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2023-12-16 18:16:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:12,710 INFO L225 Difference]: With dead ends: 250600 [2023-12-16 18:16:12,710 INFO L226 Difference]: Without dead ends: 188774 [2023-12-16 18:16:13,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 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 18:16:13,066 INFO L413 NwaCegarLoop]: 1174 mSDtfsCounter, 1109 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:13,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2564 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188774 states. [2023-12-16 18:16:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188774 to 80338. [2023-12-16 18:16:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80338 states, 80337 states have (on average 1.6038935982175087) internal successors, (128852), 80337 states have internal predecessors, (128852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80338 states to 80338 states and 128852 transitions. [2023-12-16 18:16:14,820 INFO L78 Accepts]: Start accepts. Automaton has 80338 states and 128852 transitions. Word has length 129 [2023-12-16 18:16:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:14,820 INFO L495 AbstractCegarLoop]: Abstraction has 80338 states and 128852 transitions. [2023-12-16 18:16:14,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 80338 states and 128852 transitions. [2023-12-16 18:16:14,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 18:16:14,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:14,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:14,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 18:16:15,056 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 18:16:15,056 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:15,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1605643850, now seen corresponding path program 1 times [2023-12-16 18:16:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:15,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043165114] [2023-12-16 18:16:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:15,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:16:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:15,058 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 18:16:15,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:15,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:16:15,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:15,568 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 18:16:15,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:15,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:15,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043165114] [2023-12-16 18:16:15,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043165114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:15,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:15,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:16:15,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657188271] [2023-12-16 18:16:15,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:15,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:16:15,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:16:15,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:16:15,570 INFO L87 Difference]: Start difference. First operand 80338 states and 128852 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:16,180 INFO L93 Difference]: Finished difference Result 128928 states and 208065 transitions. [2023-12-16 18:16:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:16:16,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-16 18:16:16,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:16,285 INFO L225 Difference]: With dead ends: 128928 [2023-12-16 18:16:16,285 INFO L226 Difference]: Without dead ends: 80338 [2023-12-16 18:16:16,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:16:16,340 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 861 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:16,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1022 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:16:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80338 states. [2023-12-16 18:16:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80338 to 80338. [2023-12-16 18:16:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80338 states, 80337 states have (on average 1.5967238009883367) internal successors, (128276), 80337 states have internal predecessors, (128276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80338 states to 80338 states and 128276 transitions. [2023-12-16 18:16:17,439 INFO L78 Accepts]: Start accepts. Automaton has 80338 states and 128276 transitions. Word has length 130 [2023-12-16 18:16:17,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:17,440 INFO L495 AbstractCegarLoop]: Abstraction has 80338 states and 128276 transitions. [2023-12-16 18:16:17,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:17,440 INFO L276 IsEmpty]: Start isEmpty. Operand 80338 states and 128276 transitions. [2023-12-16 18:16:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 18:16:17,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:17,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:17,481 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 18:16:17,678 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 18:16:17,678 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:17,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 20520817, now seen corresponding path program 1 times [2023-12-16 18:16:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:17,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691948912] [2023-12-16 18:16:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:17,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:17,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:17,680 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 18:16:17,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:17,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:16:17,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:17,855 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 18:16:17,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:17,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691948912] [2023-12-16 18:16:17,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691948912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:17,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:17,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:17,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035882370] [2023-12-16 18:16:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:17,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:16:17,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:17,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:16:17,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:16:17,856 INFO L87 Difference]: Start difference. First operand 80338 states and 128276 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:18,555 INFO L93 Difference]: Finished difference Result 185942 states and 299254 transitions. [2023-12-16 18:16:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:16:18,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-16 18:16:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:18,750 INFO L225 Difference]: With dead ends: 185942 [2023-12-16 18:16:18,751 INFO L226 Difference]: Without dead ends: 130836 [2023-12-16 18:16:18,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 18:16:18,818 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 182 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:18,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1033 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:18,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130836 states. [2023-12-16 18:16:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130836 to 130258. [2023-12-16 18:16:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130258 states, 130257 states have (on average 1.59797937922722) internal successors, (208148), 130257 states have internal predecessors, (208148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130258 states to 130258 states and 208148 transitions. [2023-12-16 18:16:20,556 INFO L78 Accepts]: Start accepts. Automaton has 130258 states and 208148 transitions. Word has length 130 [2023-12-16 18:16:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:20,557 INFO L495 AbstractCegarLoop]: Abstraction has 130258 states and 208148 transitions. [2023-12-16 18:16:20,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 130258 states and 208148 transitions. [2023-12-16 18:16:20,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 18:16:20,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:20,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:20,595 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 18:16:20,793 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 18:16:20,793 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:20,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2033717582, now seen corresponding path program 1 times [2023-12-16 18:16:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:20,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844876770] [2023-12-16 18:16:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:20,795 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 18:16:20,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:20,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:16:20,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:21,299 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 18:16:21,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:21,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:21,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844876770] [2023-12-16 18:16:21,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844876770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:21,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094536240] [2023-12-16 18:16:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:21,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:16:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:16:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:16:21,300 INFO L87 Difference]: Start difference. First operand 130258 states and 208148 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:22,440 INFO L93 Difference]: Finished difference Result 361484 states and 577517 transitions. [2023-12-16 18:16:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:16:22,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-16 18:16:22,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:22,863 INFO L225 Difference]: With dead ends: 361484 [2023-12-16 18:16:22,863 INFO L226 Difference]: Without dead ends: 247108 [2023-12-16 18:16:22,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:16:22,918 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 362 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:22,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1456 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247108 states. [2023-12-16 18:16:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247108 to 247106. [2023-12-16 18:16:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247106 states, 247105 states have (on average 1.5911656987920115) internal successors, (393185), 247105 states have internal predecessors, (393185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247106 states to 247106 states and 393185 transitions. [2023-12-16 18:16:26,504 INFO L78 Accepts]: Start accepts. Automaton has 247106 states and 393185 transitions. Word has length 133 [2023-12-16 18:16:26,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:26,505 INFO L495 AbstractCegarLoop]: Abstraction has 247106 states and 393185 transitions. [2023-12-16 18:16:26,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 247106 states and 393185 transitions. [2023-12-16 18:16:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 18:16:26,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:26,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:26,571 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 18:16:26,766 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 18:16:26,767 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:26,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash 68785874, now seen corresponding path program 1 times [2023-12-16 18:16:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:26,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363587872] [2023-12-16 18:16:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:26,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:26,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:26,769 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 18:16:26,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:26,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:16:26,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:27,116 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 18:16:27,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:27,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363587872] [2023-12-16 18:16:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363587872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:27,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:27,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:16:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123127005] [2023-12-16 18:16:27,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:27,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:16:27,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:16:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:16:27,118 INFO L87 Difference]: Start difference. First operand 247106 states and 393185 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:28,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:28,815 INFO L93 Difference]: Finished difference Result 428876 states and 684178 transitions. [2023-12-16 18:16:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:16:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-16 18:16:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:29,426 INFO L225 Difference]: With dead ends: 428876 [2023-12-16 18:16:29,426 INFO L226 Difference]: Without dead ends: 247106 [2023-12-16 18:16:29,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:16:29,629 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 871 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:29,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1020 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:16:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247106 states. [2023-12-16 18:16:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247106 to 247106. [2023-12-16 18:16:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247106 states, 247105 states have (on average 1.5810647295684022) internal successors, (390689), 247105 states have internal predecessors, (390689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:33,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247106 states to 247106 states and 390689 transitions. [2023-12-16 18:16:33,002 INFO L78 Accepts]: Start accepts. Automaton has 247106 states and 390689 transitions. Word has length 133 [2023-12-16 18:16:33,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:33,002 INFO L495 AbstractCegarLoop]: Abstraction has 247106 states and 390689 transitions. [2023-12-16 18:16:33,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 247106 states and 390689 transitions. [2023-12-16 18:16:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 18:16:33,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:33,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:33,073 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 18:16:33,268 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 18:16:33,268 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:33,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash 204547085, now seen corresponding path program 1 times [2023-12-16 18:16:33,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:33,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870332928] [2023-12-16 18:16:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:16:33,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:33,270 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 18:16:33,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 18:16:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:33,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:33,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:33,513 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 18:16:33,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:33,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:33,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870332928] [2023-12-16 18:16:33,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870332928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:33,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:33,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:33,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784221389] [2023-12-16 18:16:33,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:33,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:33,515 INFO L87 Difference]: Start difference. First operand 247106 states and 390689 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:35,261 INFO L93 Difference]: Finished difference Result 525227 states and 828685 transitions. [2023-12-16 18:16:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:16:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-16 18:16:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:35,738 INFO L225 Difference]: With dead ends: 525227 [2023-12-16 18:16:35,738 INFO L226 Difference]: Without dead ends: 282922 [2023-12-16 18:16:36,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 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 18:16:36,174 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 1196 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:36,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1125 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:16:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282922 states. [2023-12-16 18:16:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282922 to 249535. [2023-12-16 18:16:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249535 states, 249534 states have (on average 1.5787628138850818) internal successors, (393955), 249534 states have internal predecessors, (393955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249535 states to 249535 states and 393955 transitions. [2023-12-16 18:16:39,767 INFO L78 Accepts]: Start accepts. Automaton has 249535 states and 393955 transitions. Word has length 133 [2023-12-16 18:16:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:16:39,767 INFO L495 AbstractCegarLoop]: Abstraction has 249535 states and 393955 transitions. [2023-12-16 18:16:39,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 249535 states and 393955 transitions. [2023-12-16 18:16:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 18:16:39,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:16:39,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:16:39,831 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 18:16:40,027 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 18:16:40,027 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:16:40,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:16:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1933938392, now seen corresponding path program 1 times [2023-12-16 18:16:40,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:16:40,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342749904] [2023-12-16 18:16:40,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:16:40,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 18:16:40,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:16:40,028 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 18:16:40,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 18:16:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:16:40,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:16:40,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:16:40,519 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 18:16:40,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:16:40,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:16:40,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342749904] [2023-12-16 18:16:40,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342749904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:16:40,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:16:40,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:16:40,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211777277] [2023-12-16 18:16:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:16:40,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:16:40,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:16:40,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:16:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:16:40,521 INFO L87 Difference]: Start difference. First operand 249535 states and 393955 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:16:42,777 INFO L93 Difference]: Finished difference Result 725720 states and 1146573 transitions. [2023-12-16 18:16:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:16:42,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-16 18:16:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:16:43,675 INFO L225 Difference]: With dead ends: 725720 [2023-12-16 18:16:43,675 INFO L226 Difference]: Without dead ends: 481105 [2023-12-16 18:16:43,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 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 18:16:43,806 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 1415 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:16:43,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 1069 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:16:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481105 states. [2023-12-16 18:16:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481105 to 481103. Received shutdown request... [2023-12-16 18:16:49,722 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 18:16:49,722 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 (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:16:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481103 states, 481102 states have (on average 1.5694696758691504) internal successors, (755075), 481102 states have internal predecessors, (755075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:16:49,863 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:16:49,866 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 (26)] Ended with exit code 0 [2023-12-16 18:16:50,066 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 18:16:50,067 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 18:16:50,070 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] [2023-12-16 18:16:50,072 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:16:50,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:16:50 BoogieIcfgContainer [2023-12-16 18:16:50,074 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:16:50,074 INFO L158 Benchmark]: Toolchain (without parser) took 60882.11ms. Allocated memory was 267.4MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 223.5MB in the beginning and 4.3GB in the end (delta: -4.0GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2023-12-16 18:16:50,074 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:16:50,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.11ms. Allocated memory is still 267.4MB. Free memory was 223.5MB in the beginning and 191.8MB in the end (delta: 31.7MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 18:16:50,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.86ms. Allocated memory is still 267.4MB. Free memory was 191.8MB in the beginning and 186.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 18:16:50,075 INFO L158 Benchmark]: Boogie Preprocessor took 73.43ms. Allocated memory is still 267.4MB. Free memory was 186.6MB in the beginning and 180.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 18:16:50,075 INFO L158 Benchmark]: RCFGBuilder took 1016.35ms. Allocated memory is still 267.4MB. Free memory was 180.3MB in the beginning and 172.4MB in the end (delta: 7.8MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-12-16 18:16:50,075 INFO L158 Benchmark]: TraceAbstraction took 59317.52ms. Allocated memory was 267.4MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 171.4MB in the beginning and 4.3GB in the end (delta: -4.1GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2023-12-16 18:16:50,076 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 414.11ms. Allocated memory is still 267.4MB. Free memory was 223.5MB in the beginning and 191.8MB in the end (delta: 31.7MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.86ms. Allocated memory is still 267.4MB. Free memory was 191.8MB in the beginning and 186.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.43ms. Allocated memory is still 267.4MB. Free memory was 186.6MB in the beginning and 180.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1016.35ms. Allocated memory is still 267.4MB. Free memory was 180.3MB in the beginning and 172.4MB in the end (delta: 7.8MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. * TraceAbstraction took 59317.52ms. Allocated memory was 267.4MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 171.4MB in the beginning and 4.3GB in the end (delta: -4.1GB). Peak memory consumption was 3.9GB. 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: 693]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 693). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 324 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20320 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20320 mSDsluCounter, 34852 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15464 mSDsCounter, 199 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 606 IncrementalHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 199 mSolverCounterUnsat, 19388 mSDtfsCounter, 606 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3077 GetRequests, 3022 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249535occurred in iteration=24, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 330777 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3088 NumberOfCodeBlocks, 3088 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3063 ConstructedInterpolants, 58 QuantifiedInterpolants, 9728 SizeOfPredicates, 18 NumberOfNonLiveVariables, 6945 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 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