/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:53:17,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:53:17,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:53:17,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:53:17,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:53:17,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:53:17,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:53:17,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:53:17,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:53:17,880 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:53:17,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:53:17,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:53:17,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:53:17,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:53:17,886 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:53:17,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:53:17,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:53:17,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:53:17,888 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:53:17,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:53:17,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:53:17,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:53:17,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:53:17,889 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:53:17,890 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:53:17,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:53:17,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:53:17,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:53:17,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:53:17,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:53:17,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:53:17,892 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:53:17,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:53:17,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:53:17,893 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:53:17,893 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:53:18,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:53:18,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:53:18,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:53:18,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:53:18,114 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:53:18,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-16 07:53:19,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:53:19,570 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:53:19,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-16 07:53:19,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e1c5b693/d908b666ed4c47d7b0aab848c73bf43e/FLAG16b986325 [2023-12-16 07:53:19,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e1c5b693/d908b666ed4c47d7b0aab848c73bf43e [2023-12-16 07:53:19,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:53:19,772 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:53:19,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:53:19,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:53:19,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:53:19,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:53:19" (1/1) ... [2023-12-16 07:53:19,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6589d610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:19, skipping insertion in model container [2023-12-16 07:53:19,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:53:19" (1/1) ... [2023-12-16 07:53:19,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:53:20,160 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c[8712,8725] [2023-12-16 07:53:20,192 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c[11529,11542] [2023-12-16 07:53:20,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:53:20,806 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:53:20,839 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c[8712,8725] [2023-12-16 07:53:20,842 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c[11529,11542] [2023-12-16 07:53:21,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:53:21,147 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:53:21,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21 WrapperNode [2023-12-16 07:53:21,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:53:21,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:53:21,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:53:21,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:53:21,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,318 INFO L138 Inliner]: procedures = 37, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5014 [2023-12-16 07:53:21,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:53:21,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:53:21,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:53:21,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:53:21,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,425 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:53:21,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:53:21,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:53:21,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:53:21,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:53:21,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (1/1) ... [2023-12-16 07:53:21,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:53:21,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:53:21,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:53:21,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:53:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:53:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:53:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:53:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:53:21,821 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:53:21,826 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:53:46,939 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:53:46,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:53:46,999 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 07:53:47,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:53:47 BoogieIcfgContainer [2023-12-16 07:53:47,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:53:47,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:53:47,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:53:47,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:53:47,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:53:19" (1/3) ... [2023-12-16 07:53:47,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301a208b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:53:47, skipping insertion in model container [2023-12-16 07:53:47,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:53:21" (2/3) ... [2023-12-16 07:53:47,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301a208b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:53:47, skipping insertion in model container [2023-12-16 07:53:47,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:53:47" (3/3) ... [2023-12-16 07:53:47,006 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-16 07:53:47,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:53:47,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:53:47,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:53:47,084 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;@702aad31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:53:47,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:53:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states 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 07:53:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 07:53:47,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:53:47,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:53:47,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:53:47,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:53:47,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1324896968, now seen corresponding path program 1 times [2023-12-16 07:53:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:53:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347575468] [2023-12-16 07:53:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:53:47,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:53:47,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:53:47,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:53:47,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:53:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:53:47,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 07:53:47,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:53:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:53:47,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:53:47,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:53:47,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347575468] [2023-12-16 07:53:47,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347575468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:53:47,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:53:47,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:53:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277243956] [2023-12-16 07:53:47,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:53:47,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 07:53:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:53:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 07:53:47,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:53:47,266 INFO L87 Difference]: Start difference. First operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 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 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 07:53:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:53:47,406 INFO L93 Difference]: Finished difference Result 1616 states and 3185 transitions. [2023-12-16 07:53:47,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 07:53:47,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-16 07:53:47,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:53:47,420 INFO L225 Difference]: With dead ends: 1616 [2023-12-16 07:53:47,420 INFO L226 Difference]: Without dead ends: 818 [2023-12-16 07:53:47,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:53:47,426 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:53:47,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1547 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:53:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-16 07:53:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-12-16 07:53:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8970588235294117) internal successors, (1548), 817 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states 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 07:53:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1548 transitions. [2023-12-16 07:53:47,493 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1548 transitions. Word has length 19 [2023-12-16 07:53:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:53:47,494 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1548 transitions. [2023-12-16 07:53:47,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 07:53:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1548 transitions. [2023-12-16 07:53:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 07:53:47,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:53:47,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:53:47,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 07:53:47,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:53:47,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:53:47,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:53:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1690206650, now seen corresponding path program 1 times [2023-12-16 07:53:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:53:47,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893021795] [2023-12-16 07:53:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:53:47,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:53:47,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:53:47,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:53:47,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:53:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:53:47,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:53:47,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:53:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:53:47,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:53:47,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:53:47,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893021795] [2023-12-16 07:53:47,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893021795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:53:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:53:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:53:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051497091] [2023-12-16 07:53:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:53:47,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:53:47,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:53:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:53:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:53:47,804 INFO L87 Difference]: Start difference. First operand 818 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 07:53:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:53:47,873 INFO L93 Difference]: Finished difference Result 858 states and 1610 transitions. [2023-12-16 07:53:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:53:47,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-16 07:53:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:53:47,877 INFO L225 Difference]: With dead ends: 858 [2023-12-16 07:53:47,877 INFO L226 Difference]: Without dead ends: 818 [2023-12-16 07:53:47,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:53:47,878 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:53:47,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4608 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:53:47,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-16 07:53:47,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-12-16 07:53:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8688725490196079) internal successors, (1525), 817 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states 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 07:53:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1525 transitions. [2023-12-16 07:53:47,894 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1525 transitions. Word has length 19 [2023-12-16 07:53:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:53:47,894 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1525 transitions. [2023-12-16 07:53:47,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 07:53:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1525 transitions. [2023-12-16 07:53:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 07:53:47,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:53:47,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:53:47,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 07:53:48,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:53:48,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:53:48,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:53:48,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1822396511, now seen corresponding path program 1 times [2023-12-16 07:53:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:53:48,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810389757] [2023-12-16 07:53:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:53:48,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:53:48,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:53:48,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:53:48,118 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 07:53:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:53:48,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:53:48,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:53:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:53:48,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:53:48,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:53:48,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810389757] [2023-12-16 07:53:48,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810389757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:53:48,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:53:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:53:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562206760] [2023-12-16 07:53:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:53:48,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:53:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:53:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:53:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:53:48,215 INFO L87 Difference]: Start difference. First operand 818 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 07:54:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:25,007 INFO L93 Difference]: Finished difference Result 2322 states and 4398 transitions. [2023-12-16 07:54:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-16 07:54:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:25,015 INFO L225 Difference]: With dead ends: 2322 [2023-12-16 07:54:25,015 INFO L226 Difference]: Without dead ends: 1569 [2023-12-16 07:54:25,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:25,016 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 881 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:25,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 511 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 36.6s Time] [2023-12-16 07:54:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2023-12-16 07:54:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1569. [2023-12-16 07:54:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1567 states have (on average 1.6285896617740907) internal successors, (2552), 1568 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states 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 07:54:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2552 transitions. [2023-12-16 07:54:25,067 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2552 transitions. Word has length 23 [2023-12-16 07:54:25,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:25,067 INFO L495 AbstractCegarLoop]: Abstraction has 1569 states and 2552 transitions. [2023-12-16 07:54:25,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 07:54:25,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2552 transitions. [2023-12-16 07:54:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 07:54:25,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:25,069 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] [2023-12-16 07:54:25,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:25,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:25,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:25,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:25,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1827910901, now seen corresponding path program 1 times [2023-12-16 07:54:25,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:25,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860758421] [2023-12-16 07:54:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:25,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:25,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:25,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:54:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:25,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 07:54:25,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:25,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:25,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:25,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860758421] [2023-12-16 07:54:25,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860758421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:25,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:25,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 07:54:25,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844197286] [2023-12-16 07:54:25,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:25,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 07:54:25,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:25,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 07:54:25,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:54:25,693 INFO L87 Difference]: Start difference. First operand 1569 states and 2552 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 07:54:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:25,843 INFO L93 Difference]: Finished difference Result 1754 states and 2847 transitions. [2023-12-16 07:54:25,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:54:25,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-16 07:54:25,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:25,851 INFO L225 Difference]: With dead ends: 1754 [2023-12-16 07:54:25,851 INFO L226 Difference]: Without dead ends: 1717 [2023-12-16 07:54:25,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:54:25,853 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 4622 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4622 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:25,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4622 Valid, 1775 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:54:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2023-12-16 07:54:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1639. [2023-12-16 07:54:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1637 states have (on average 1.6279780085522297) internal successors, (2665), 1638 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states 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 07:54:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2665 transitions. [2023-12-16 07:54:25,878 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2665 transitions. Word has length 41 [2023-12-16 07:54:25,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:25,878 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2665 transitions. [2023-12-16 07:54:25,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 07:54:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2665 transitions. [2023-12-16 07:54:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 07:54:25,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:25,883 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] [2023-12-16 07:54:25,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:26,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:26,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash -143781275, now seen corresponding path program 1 times [2023-12-16 07:54:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:26,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720536841] [2023-12-16 07:54:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:26,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:26,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:26,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:54:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:26,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:26,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:26,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:26,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:26,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720536841] [2023-12-16 07:54:26,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720536841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:26,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:26,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22877884] [2023-12-16 07:54:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:26,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:26,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:26,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:26,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:26,215 INFO L87 Difference]: Start difference. First operand 1639 states and 2665 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 07:54:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:26,252 INFO L93 Difference]: Finished difference Result 1837 states and 2981 transitions. [2023-12-16 07:54:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-12-16 07:54:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:26,257 INFO L225 Difference]: With dead ends: 1837 [2023-12-16 07:54:26,257 INFO L226 Difference]: Without dead ends: 1730 [2023-12-16 07:54:26,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:26,258 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1474 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:26,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1569 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-12-16 07:54:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1725. [2023-12-16 07:54:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1723 states have (on average 1.6233313987231572) internal successors, (2797), 1724 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states 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 07:54:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2797 transitions. [2023-12-16 07:54:26,282 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2797 transitions. Word has length 43 [2023-12-16 07:54:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:26,283 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2797 transitions. [2023-12-16 07:54:26,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 07:54:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2797 transitions. [2023-12-16 07:54:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-16 07:54:26,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:26,292 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] [2023-12-16 07:54:26,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:26,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:26,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:26,496 INFO L85 PathProgramCache]: Analyzing trace with hash -224171133, now seen corresponding path program 1 times [2023-12-16 07:54:26,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:26,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949291711] [2023-12-16 07:54:26,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:26,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:26,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:26,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:54:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:26,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:54:26,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:26,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:26,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:26,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:26,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949291711] [2023-12-16 07:54:26,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949291711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:26,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:26,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:54:26,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93290029] [2023-12-16 07:54:26,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:26,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:54:26,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:54:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:54:26,585 INFO L87 Difference]: Start difference. First operand 1725 states and 2797 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 07:54:26,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:26,647 INFO L93 Difference]: Finished difference Result 1739 states and 2814 transitions. [2023-12-16 07:54:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:54:26,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2023-12-16 07:54:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:26,654 INFO L225 Difference]: With dead ends: 1739 [2023-12-16 07:54:26,654 INFO L226 Difference]: Without dead ends: 1737 [2023-12-16 07:54:26,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:54:26,657 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:26,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4555 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2023-12-16 07:54:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1733. [2023-12-16 07:54:26,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1731 states have (on average 1.6198729058347776) internal successors, (2804), 1732 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states 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 07:54:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2804 transitions. [2023-12-16 07:54:26,686 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2804 transitions. Word has length 44 [2023-12-16 07:54:26,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:26,687 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2804 transitions. [2023-12-16 07:54:26,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 07:54:26,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2804 transitions. [2023-12-16 07:54:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 07:54:26,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:26,688 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] [2023-12-16 07:54:26,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:26,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:26,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash 339171325, now seen corresponding path program 1 times [2023-12-16 07:54:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:26,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853510231] [2023-12-16 07:54:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:26,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:26,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:26,894 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 07:54:26,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:54:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:26,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:26,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:27,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:27,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:27,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:27,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853510231] [2023-12-16 07:54:27,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853510231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:27,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:27,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:27,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780731512] [2023-12-16 07:54:27,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:27,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:27,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,039 INFO L87 Difference]: Start difference. First operand 1733 states and 2804 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:27,072 INFO L93 Difference]: Finished difference Result 2111 states and 3384 transitions. [2023-12-16 07:54:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:27,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-16 07:54:27,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:27,078 INFO L225 Difference]: With dead ends: 2111 [2023-12-16 07:54:27,078 INFO L226 Difference]: Without dead ends: 1910 [2023-12-16 07:54:27,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,079 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1485 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:27,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1620 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2023-12-16 07:54:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1908. [2023-12-16 07:54:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1906 states have (on average 1.608604407135362) internal successors, (3066), 1907 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states 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 07:54:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 3066 transitions. [2023-12-16 07:54:27,106 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 3066 transitions. Word has length 45 [2023-12-16 07:54:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:27,106 INFO L495 AbstractCegarLoop]: Abstraction has 1908 states and 3066 transitions. [2023-12-16 07:54:27,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 3066 transitions. [2023-12-16 07:54:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 07:54:27,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:27,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:54:27,130 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 07:54:27,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:27,317 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:27,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:27,317 INFO L85 PathProgramCache]: Analyzing trace with hash -286484739, now seen corresponding path program 1 times [2023-12-16 07:54:27,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:27,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522869747] [2023-12-16 07:54:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:27,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:27,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:54:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:27,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:27,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:27,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:27,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:27,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:27,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522869747] [2023-12-16 07:54:27,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522869747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:27,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:27,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:27,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628553129] [2023-12-16 07:54:27,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:27,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:27,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:27,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,450 INFO L87 Difference]: Start difference. First operand 1908 states and 3066 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:27,481 INFO L93 Difference]: Finished difference Result 2612 states and 4128 transitions. [2023-12-16 07:54:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:27,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-16 07:54:27,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:27,487 INFO L225 Difference]: With dead ends: 2612 [2023-12-16 07:54:27,487 INFO L226 Difference]: Without dead ends: 2236 [2023-12-16 07:54:27,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,489 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1483 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:27,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1622 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2023-12-16 07:54:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2234. [2023-12-16 07:54:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 2232 states have (on average 1.5869175627240144) internal successors, (3542), 2233 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:54:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 3542 transitions. [2023-12-16 07:54:27,548 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 3542 transitions. Word has length 45 [2023-12-16 07:54:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:27,548 INFO L495 AbstractCegarLoop]: Abstraction has 2234 states and 3542 transitions. [2023-12-16 07:54:27,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 3542 transitions. [2023-12-16 07:54:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 07:54:27,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:27,549 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] [2023-12-16 07:54:27,566 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 07:54:27,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:27,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:27,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash 602248701, now seen corresponding path program 1 times [2023-12-16 07:54:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:27,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931503670] [2023-12-16 07:54:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:27,754 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:27,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:54:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:27,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:27,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:27,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:27,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:27,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931503670] [2023-12-16 07:54:27,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931503670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:27,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:27,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874656960] [2023-12-16 07:54:27,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:27,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:27,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:27,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:27,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,876 INFO L87 Difference]: Start difference. First operand 2234 states and 3542 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:27,911 INFO L93 Difference]: Finished difference Result 3542 states and 5472 transitions. [2023-12-16 07:54:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:27,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-16 07:54:27,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:27,918 INFO L225 Difference]: With dead ends: 3542 [2023-12-16 07:54:27,918 INFO L226 Difference]: Without dead ends: 2840 [2023-12-16 07:54:27,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:27,920 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 1481 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:27,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1624 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2023-12-16 07:54:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2838. [2023-12-16 07:54:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2836 states have (on average 1.5507757404795486) internal successors, (4398), 2837 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states 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 07:54:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 4398 transitions. [2023-12-16 07:54:27,970 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 4398 transitions. Word has length 45 [2023-12-16 07:54:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:27,970 INFO L495 AbstractCegarLoop]: Abstraction has 2838 states and 4398 transitions. [2023-12-16 07:54:27,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 07:54:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 4398 transitions. [2023-12-16 07:54:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-16 07:54:27,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:27,971 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] [2023-12-16 07:54:27,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:28,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:28,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:28,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1358107618, now seen corresponding path program 1 times [2023-12-16 07:54:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036983341] [2023-12-16 07:54:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:28,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:28,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:28,194 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:28,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:54:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:28,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:28,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:28,299 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 07:54:28,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:28,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:28,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036983341] [2023-12-16 07:54:28,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036983341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:28,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:28,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532433662] [2023-12-16 07:54:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:28,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:28,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:28,300 INFO L87 Difference]: Start difference. First operand 2838 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 07:54:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:28,340 INFO L93 Difference]: Finished difference Result 4189 states and 6420 transitions. [2023-12-16 07:54:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:28,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-16 07:54:28,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:28,349 INFO L225 Difference]: With dead ends: 4189 [2023-12-16 07:54:28,349 INFO L226 Difference]: Without dead ends: 3442 [2023-12-16 07:54:28,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:28,352 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 1484 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:28,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2023-12-16 07:54:28,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2023-12-16 07:54:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.5311227457824317) internal successors, (5264), 3439 states have internal predecessors, (5264), 0 states have call successors, (0), 0 states 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 07:54:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5264 transitions. [2023-12-16 07:54:28,404 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5264 transitions. Word has length 47 [2023-12-16 07:54:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:28,404 INFO L495 AbstractCegarLoop]: Abstraction has 3440 states and 5264 transitions. [2023-12-16 07:54:28,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 07:54:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5264 transitions. [2023-12-16 07:54:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:54:28,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:28,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:54:28,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:28,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:28,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:28,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash 445025325, now seen corresponding path program 1 times [2023-12-16 07:54:28,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:28,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373100358] [2023-12-16 07:54:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:28,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:28,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:28,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:28,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:54:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:28,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:28,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:28,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:28,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:28,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373100358] [2023-12-16 07:54:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373100358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:28,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032241482] [2023-12-16 07:54:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:28,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:28,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:28,753 INFO L87 Difference]: Start difference. First operand 3440 states and 5264 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 07:54:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:28,790 INFO L93 Difference]: Finished difference Result 4805 states and 7276 transitions. [2023-12-16 07:54:28,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:28,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-16 07:54:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:28,798 INFO L225 Difference]: With dead ends: 4805 [2023-12-16 07:54:28,798 INFO L226 Difference]: Without dead ends: 2899 [2023-12-16 07:54:28,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:28,800 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 42 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:28,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3062 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2023-12-16 07:54:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2897. [2023-12-16 07:54:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2895 states have (on average 1.5478411053540588) internal successors, (4481), 2896 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states 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 07:54:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4481 transitions. [2023-12-16 07:54:28,836 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4481 transitions. Word has length 61 [2023-12-16 07:54:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:28,836 INFO L495 AbstractCegarLoop]: Abstraction has 2897 states and 4481 transitions. [2023-12-16 07:54:28,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 07:54:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4481 transitions. [2023-12-16 07:54:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 07:54:28,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:28,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:54:28,842 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 (12)] Ended with exit code 0 [2023-12-16 07:54:29,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:29,041 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:29,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:29,041 INFO L85 PathProgramCache]: Analyzing trace with hash 4586514, now seen corresponding path program 1 times [2023-12-16 07:54:29,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:29,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232967838] [2023-12-16 07:54:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:29,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:29,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:29,043 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:29,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:54:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:29,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:54:29,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:29,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:54:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:29,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:29,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232967838] [2023-12-16 07:54:29,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232967838] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:54:29,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:54:29,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:54:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393781602] [2023-12-16 07:54:29,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:54:29,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:54:29,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:29,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:54:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:54:29,985 INFO L87 Difference]: Start difference. First operand 2897 states and 4481 transitions. Second operand has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 07:54:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:54:31,675 INFO L93 Difference]: Finished difference Result 6471 states and 9610 transitions. [2023-12-16 07:54:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 07:54:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 63 [2023-12-16 07:54:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:54:31,694 INFO L225 Difference]: With dead ends: 6471 [2023-12-16 07:54:31,694 INFO L226 Difference]: Without dead ends: 5125 [2023-12-16 07:54:31,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-16 07:54:31,696 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 4924 mSDsluCounter, 12279 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4924 SdHoareTripleChecker+Valid, 13814 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:31,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4924 Valid, 13814 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 07:54:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5125 states. [2023-12-16 07:54:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 4241. [2023-12-16 07:54:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4241 states, 4239 states have (on average 1.5156876621844775) internal successors, (6425), 4240 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states 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 07:54:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 6425 transitions. [2023-12-16 07:54:31,792 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 6425 transitions. Word has length 63 [2023-12-16 07:54:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:54:31,793 INFO L495 AbstractCegarLoop]: Abstraction has 4241 states and 6425 transitions. [2023-12-16 07:54:31,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 07:54:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 6425 transitions. [2023-12-16 07:54:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 07:54:31,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:54:31,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:54:31,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-16 07:54:32,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:32,005 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:54:32,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:54:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash 184022854, now seen corresponding path program 1 times [2023-12-16 07:54:32,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:54:32,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865869209] [2023-12-16 07:54:32,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:54:32,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:32,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:54:32,007 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:54:32,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:54:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:54:32,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:54:32,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:54:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:54:32,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:54:32,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:54:32,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865869209] [2023-12-16 07:54:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865869209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:54:32,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:54:32,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:54:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253470357] [2023-12-16 07:54:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:54:32,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:54:32,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:54:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:54:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:32,123 INFO L87 Difference]: Start difference. First operand 4241 states and 6425 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 07:54:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:54:32,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:54:32,149 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:54:32,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:54:32,150 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:54:32,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:54:32,159 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 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:54:32,181 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:54:32,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:54:32,352 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (4241states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (83 states constructed, input type IntersectNwa). [2023-12-16 07:54:32,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:54:32,357 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:54:32,358 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:54:32,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:54:32 BoogieIcfgContainer [2023-12-16 07:54:32,360 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:54:32,360 INFO L158 Benchmark]: Toolchain (without parser) took 72587.73ms. Allocated memory was 255.9MB in the beginning and 552.6MB in the end (delta: 296.7MB). Free memory was 185.9MB in the beginning and 325.3MB in the end (delta: -139.5MB). Peak memory consumption was 158.6MB. Max. memory is 8.0GB. [2023-12-16 07:54:32,360 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 255.9MB. Free memory is still 204.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:54:32,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1374.47ms. Allocated memory was 255.9MB in the beginning and 338.7MB in the end (delta: 82.8MB). Free memory was 185.9MB in the beginning and 183.2MB in the end (delta: 2.6MB). Peak memory consumption was 86.7MB. Max. memory is 8.0GB. [2023-12-16 07:54:32,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.30ms. Allocated memory is still 338.7MB. Free memory was 183.2MB in the beginning and 147.7MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 07:54:32,361 INFO L158 Benchmark]: Boogie Preprocessor took 261.71ms. Allocated memory is still 338.7MB. Free memory was 147.7MB in the beginning and 108.9MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-16 07:54:32,361 INFO L158 Benchmark]: RCFGBuilder took 25417.59ms. Allocated memory was 338.7MB in the beginning and 552.6MB in the end (delta: 213.9MB). Free memory was 108.9MB in the beginning and 274.0MB in the end (delta: -165.1MB). Peak memory consumption was 65.1MB. Max. memory is 8.0GB. [2023-12-16 07:54:32,361 INFO L158 Benchmark]: TraceAbstraction took 45358.37ms. Allocated memory is still 552.6MB. Free memory was 273.5MB in the beginning and 325.3MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:54:32,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 255.9MB. Free memory is still 204.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1374.47ms. Allocated memory was 255.9MB in the beginning and 338.7MB in the end (delta: 82.8MB). Free memory was 185.9MB in the beginning and 183.2MB in the end (delta: 2.6MB). Peak memory consumption was 86.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 169.30ms. Allocated memory is still 338.7MB. Free memory was 183.2MB in the beginning and 147.7MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 261.71ms. Allocated memory is still 338.7MB. Free memory was 147.7MB in the beginning and 108.9MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 25417.59ms. Allocated memory was 338.7MB in the beginning and 552.6MB in the end (delta: 213.9MB). Free memory was 108.9MB in the beginning and 274.0MB in the end (delta: -165.1MB). Peak memory consumption was 65.1MB. Max. memory is 8.0GB. * TraceAbstraction took 45358.37ms. Allocated memory is still 552.6MB. Free memory was 273.5MB in the beginning and 325.3MB in the end (delta: -51.9MB). There was no memory consumed. 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: 364]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 364). Cancelled while NwaCegarLoop was constructing difference of abstraction (4241states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (83 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 451]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 451). Cancelled while NwaCegarLoop was constructing difference of abstraction (4241states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (83 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 822 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17877 SdHoareTripleChecker+Valid, 37.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17877 mSDsluCounter, 38076 SdHoareTripleChecker+Invalid, 31.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20529 mSDsCounter, 644 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3258 IncrementalHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 644 mSolverCounterUnsat, 17547 mSDtfsCounter, 3258 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 625 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4241occurred in iteration=12, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 981 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 609 ConstructedInterpolants, 33 QuantifiedInterpolants, 2711 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 46/50 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