/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/eca-rers2012/Problem19_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:03:19,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:03:19,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 17:03:19,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:03:19,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:03:19,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:03:19,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:03:19,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:03:19,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:03:19,988 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:03:19,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:03:19,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:03:19,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:03:19,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:03:19,991 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:03:19,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:03:19,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:03:19,992 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:03:19,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:03:19,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:03:19,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:03:19,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:03:19,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:03:19,993 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:03:19,993 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:03:19,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:03:19,994 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:03:19,994 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:03:19,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:03:19,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:03:19,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:03:19,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:03:19,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:03:19,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:03:19,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:03:19,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:03:19,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:03:19,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:03:19,996 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:03:19,997 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:03:19,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:03:19,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:03:19,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:03:19,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:03:19,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:03:19,998 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:03:19,998 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:03:20,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:03:20,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:03:20,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:03:20,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:03:20,234 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:03:20,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01.c [2023-12-22 17:03:21,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:03:21,993 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:03:21,994 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01.c [2023-12-22 17:03:22,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97335941/fb9b1b3d55ca40e7931e24de71c550ce/FLAGbc4439c91 [2023-12-22 17:03:22,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97335941/fb9b1b3d55ca40e7931e24de71c550ce [2023-12-22 17:03:22,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:03:22,070 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:03:22,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:03:22,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:03:22,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:03:22,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:03:22" (1/1) ... [2023-12-22 17:03:22,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282673b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:22, skipping insertion in model container [2023-12-22 17:03:22,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:03:22" (1/1) ... [2023-12-22 17:03:22,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:03:22,693 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01.c[8162,8175] [2023-12-22 17:03:23,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:03:23,941 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:03:23,970 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01.c[8162,8175] [2023-12-22 17:03:24,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:03:24,823 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:03:24,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24 WrapperNode [2023-12-22 17:03:24,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:03:24,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:03:24,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:03:24,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:03:24,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:24,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,131 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:03:25,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:03:25,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:03:25,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:03:25,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:03:25,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,272 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 17:03:25,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:03:25,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:03:25,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:03:25,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:03:25,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (1/1) ... [2023-12-22 17:03:25,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:03:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:03:25,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 17:03:25,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 17:03:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:03:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:03:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:03:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:03:25,935 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:03:25,937 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:04:28,450 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:04:28,546 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:04:28,546 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:04:28,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:04:28 BoogieIcfgContainer [2023-12-22 17:04:28,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:04:28,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:04:28,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:04:28,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:04:28,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:03:22" (1/3) ... [2023-12-22 17:04:28,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a9664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:04:28, skipping insertion in model container [2023-12-22 17:04:28,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:03:24" (2/3) ... [2023-12-22 17:04:28,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a9664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:04:28, skipping insertion in model container [2023-12-22 17:04:28,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:04:28" (3/3) ... [2023-12-22 17:04:28,554 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label01.c [2023-12-22 17:04:28,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:04:28,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:04:28,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:04:28,660 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;@6eeeff6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:04:28,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:04:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:04:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 17:04:28,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:04:28,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:04:28,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:04:28,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:04:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1852390892, now seen corresponding path program 1 times [2023-12-22 17:04:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:04:28,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787345548] [2023-12-22 17:04:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:04:28,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:04:28,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:04:28,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:04:28,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 17:04:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:04:28,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:04:28,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:04:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:04:28,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:04:28,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:04:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787345548] [2023-12-22 17:04:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787345548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:04:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:04:28,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:04:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055621118] [2023-12-22 17:04:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:04:28,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:04:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:04:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:04:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:04:28,825 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:04:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:04:28,942 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:04:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:04:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-22 17:04:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:04:28,965 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:04:28,965 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:04:28,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:04:28,976 INFO L413 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:04:28,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 17:04:28,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:04:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:04:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:04:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:04:29,098 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 62 [2023-12-22 17:04:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:04:29,098 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:04:29,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:04:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:04:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 17:04:29,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:04:29,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:04:29,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 17:04:29,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:04:29,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:04:29,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:04:29,305 INFO L85 PathProgramCache]: Analyzing trace with hash -521661112, now seen corresponding path program 1 times [2023-12-22 17:04:29,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:04:29,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539932716] [2023-12-22 17:04:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:04:29,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:04:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:04:29,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:04:29,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 17:04:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:04:29,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:04:29,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:04:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:04:29,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:04:29,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:04:29,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539932716] [2023-12-22 17:04:29,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539932716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:04:29,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:04:29,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:04:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597528269] [2023-12-22 17:04:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:04:29,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:04:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:04:29,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:04:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:04:29,684 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:06:10,313 INFO L93 Difference]: Finished difference Result 4845 states and 9098 transitions. [2023-12-22 17:06:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:06:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-22 17:06:10,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:06:10,328 INFO L225 Difference]: With dead ends: 4845 [2023-12-22 17:06:10,328 INFO L226 Difference]: Without dead ends: 3162 [2023-12-22 17:06:10,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:06:10,332 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 1468 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4611 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 4611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:06:10,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1468 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 4611 Invalid, 0 Unknown, 0 Unchecked, 100.2s Time] [2023-12-22 17:06:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-12-22 17:06:10,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3122. [2023-12-22 17:06:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 1.6270426145466197) internal successors, (5078), 3121 states have internal predecessors, (5078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5078 transitions. [2023-12-22 17:06:10,468 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5078 transitions. Word has length 62 [2023-12-22 17:06:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:06:10,468 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 5078 transitions. [2023-12-22 17:06:10,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:10,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5078 transitions. [2023-12-22 17:06:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 17:06:10,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:06:10,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:06:10,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 17:06:10,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:06:10,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:06:10,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:06:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1833529552, now seen corresponding path program 1 times [2023-12-22 17:06:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:06:10,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139378863] [2023-12-22 17:06:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:06:10,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:06:10,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:06:10,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:06:10,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 17:06:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:06:10,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:06:10,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:06:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:06:11,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:06:11,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:06:11,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139378863] [2023-12-22 17:06:11,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139378863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:06:11,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:06:11,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:06:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330194823] [2023-12-22 17:06:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:06:11,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:06:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:06:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:06:11,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:06:11,443 INFO L87 Difference]: Start difference. First operand 3122 states and 5078 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:07:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:07:57,278 INFO L93 Difference]: Finished difference Result 9038 states and 14797 transitions. [2023-12-22 17:07:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:07:57,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-22 17:07:57,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:07:57,304 INFO L225 Difference]: With dead ends: 9038 [2023-12-22 17:07:57,304 INFO L226 Difference]: Without dead ends: 5917 [2023-12-22 17:07:57,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:07:57,310 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 1516 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 5651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.4s IncrementalHoareTripleChecker+Time [2023-12-22 17:07:57,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1539 Invalid, 5651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [909 Valid, 4742 Invalid, 0 Unknown, 0 Unchecked, 105.4s Time] [2023-12-22 17:07:57,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2023-12-22 17:07:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5885. [2023-12-22 17:07:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5885 states, 5884 states have (on average 1.4243711760707003) internal successors, (8381), 5884 states have internal predecessors, (8381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:07:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 8381 transitions. [2023-12-22 17:07:57,414 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 8381 transitions. Word has length 133 [2023-12-22 17:07:57,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:07:57,415 INFO L495 AbstractCegarLoop]: Abstraction has 5885 states and 8381 transitions. [2023-12-22 17:07:57,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:07:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 8381 transitions. [2023-12-22 17:07:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-22 17:07:57,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:07:57,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:07:57,431 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 [2023-12-22 17:07:57,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:07:57,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:07:57,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:07:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash 35129298, now seen corresponding path program 1 times [2023-12-22 17:07:57,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:07:57,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186100858] [2023-12-22 17:07:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:07:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:07:57,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:07:57,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:07:57,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 17:07:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:07:57,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:07:57,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:07:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:07:58,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:07:58,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:07:58,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186100858] [2023-12-22 17:07:58,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186100858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:07:58,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:07:58,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:07:58,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907932082] [2023-12-22 17:07:58,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:07:58,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:07:58,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:07:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:07:58,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:07:58,443 INFO L87 Difference]: Start difference. First operand 5885 states and 8381 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:09:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:09:46,712 INFO L93 Difference]: Finished difference Result 17266 states and 24591 transitions. [2023-12-22 17:09:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:09:46,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2023-12-22 17:09:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:09:46,768 INFO L225 Difference]: With dead ends: 17266 [2023-12-22 17:09:46,769 INFO L226 Difference]: Without dead ends: 11382 [2023-12-22 17:09:46,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:09:46,780 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 1351 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4682 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 5821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 4682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.8s IncrementalHoareTripleChecker+Time [2023-12-22 17:09:46,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1963 Invalid, 5821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4682 Invalid, 0 Unknown, 0 Unchecked, 107.8s Time] [2023-12-22 17:09:46,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2023-12-22 17:09:46,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 11379. [2023-12-22 17:09:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11379 states, 11378 states have (on average 1.2708736157496925) internal successors, (14460), 11378 states have internal predecessors, (14460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:09:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11379 states to 11379 states and 14460 transitions. [2023-12-22 17:09:46,985 INFO L78 Accepts]: Start accepts. Automaton has 11379 states and 14460 transitions. Word has length 145 [2023-12-22 17:09:46,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:09:46,986 INFO L495 AbstractCegarLoop]: Abstraction has 11379 states and 14460 transitions. [2023-12-22 17:09:46,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:09:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 11379 states and 14460 transitions. [2023-12-22 17:09:46,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 17:09:46,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:09:46,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:09:46,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 17:09:47,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:09:47,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:09:47,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:09:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash -444214657, now seen corresponding path program 1 times [2023-12-22 17:09:47,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:09:47,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837498168] [2023-12-22 17:09:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:09:47,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:09:47,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:09:47,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:09:47,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 17:09:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:09:47,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:09:47,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:09:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:09:48,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:09:48,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:09:48,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837498168] [2023-12-22 17:09:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837498168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:09:48,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:09:48,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:09:48,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900025535] [2023-12-22 17:09:48,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:09:48,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:09:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:09:48,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:09:48,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:09:48,235 INFO L87 Difference]: Start difference. First operand 11379 states and 14460 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:11:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:11:37,601 INFO L93 Difference]: Finished difference Result 33895 states and 43075 transitions. [2023-12-22 17:11:37,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:11:37,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2023-12-22 17:11:37,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:11:37,672 INFO L225 Difference]: With dead ends: 33895 [2023-12-22 17:11:37,673 INFO L226 Difference]: Without dead ends: 22517 [2023-12-22 17:11:37,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:11:37,688 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 1744 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 4712 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 5655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 4712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:11:37,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 1780 Invalid, 5655 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [943 Valid, 4712 Invalid, 0 Unknown, 0 Unchecked, 108.9s Time] [2023-12-22 17:11:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22517 states. [2023-12-22 17:11:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22517 to 22499. [2023-12-22 17:11:37,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22498 states have (on average 1.1801937950040005) internal successors, (26552), 22498 states have internal predecessors, (26552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:11:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 26552 transitions. [2023-12-22 17:11:38,001 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 26552 transitions. Word has length 159 [2023-12-22 17:11:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:11:38,002 INFO L495 AbstractCegarLoop]: Abstraction has 22499 states and 26552 transitions. [2023-12-22 17:11:38,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:11:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 26552 transitions. [2023-12-22 17:11:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 17:11:38,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:11:38,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:11:38,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 17:11:38,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:11:38,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:11:38,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:11:38,218 INFO L85 PathProgramCache]: Analyzing trace with hash 97658594, now seen corresponding path program 1 times [2023-12-22 17:11:38,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:11:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378194704] [2023-12-22 17:11:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:11:38,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:11:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:11:38,222 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:11:38,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 17:11:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:11:38,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:11:38,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:11:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-22 17:11:39,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:11:39,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:11:39,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378194704] [2023-12-22 17:11:39,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378194704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:11:39,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:11:39,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:11:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904863618] [2023-12-22 17:11:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:11:39,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:11:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:11:39,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:11:39,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:11:39,322 INFO L87 Difference]: Start difference. First operand 22499 states and 26552 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:13:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:13:38,983 INFO L93 Difference]: Finished difference Result 47682 states and 57973 transitions. [2023-12-22 17:13:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:13:38,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 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 244 [2023-12-22 17:13:38,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:13:39,033 INFO L225 Difference]: With dead ends: 47682 [2023-12-22 17:13:39,033 INFO L226 Difference]: Without dead ends: 26549 [2023-12-22 17:13:39,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:13:39,056 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2469 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:13:39,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 984 Invalid, 5547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5282 Invalid, 0 Unknown, 0 Unchecked, 119.2s Time] [2023-12-22 17:13:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26549 states. [2023-12-22 17:13:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26549 to 26546. [2023-12-22 17:13:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26546 states, 26545 states have (on average 1.1935957807496704) internal successors, (31684), 26545 states have internal predecessors, (31684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:13:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26546 states to 26546 states and 31684 transitions. [2023-12-22 17:13:39,363 INFO L78 Accepts]: Start accepts. Automaton has 26546 states and 31684 transitions. Word has length 244 [2023-12-22 17:13:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:13:39,364 INFO L495 AbstractCegarLoop]: Abstraction has 26546 states and 31684 transitions. [2023-12-22 17:13:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:13:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 26546 states and 31684 transitions. [2023-12-22 17:13:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-22 17:13:39,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:13:39,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:13:39,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 17:13:39,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:13:39,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:13:39,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:13:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1228416188, now seen corresponding path program 1 times [2023-12-22 17:13:39,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:13:39,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970209414] [2023-12-22 17:13:39,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:13:39,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:13:39,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:13:39,578 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:13:39,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 17:13:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:13:39,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:13:39,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:13:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:13:43,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:13:43,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:13:43,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970209414] [2023-12-22 17:13:43,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970209414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:13:43,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:13:43,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:13:43,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754483715] [2023-12-22 17:13:43,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:13:43,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:13:43,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:13:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:13:43,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:13:43,279 INFO L87 Difference]: Start difference. First operand 26546 states and 31684 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:09,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:15:09,323 INFO L93 Difference]: Finished difference Result 44887 states and 54557 transitions. [2023-12-22 17:15:09,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:15:09,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2023-12-22 17:15:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:15:09,384 INFO L225 Difference]: With dead ends: 44887 [2023-12-22 17:15:09,384 INFO L226 Difference]: Without dead ends: 27911 [2023-12-22 17:15:09,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:15:09,406 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.6s IncrementalHoareTripleChecker+Time [2023-12-22 17:15:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1945 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 85.6s Time] [2023-12-22 17:15:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27911 states. [2023-12-22 17:15:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27911 to 27911. [2023-12-22 17:15:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27911 states, 27910 states have (on average 1.1843425295592978) internal successors, (33055), 27910 states have internal predecessors, (33055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 33055 transitions. [2023-12-22 17:15:09,832 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 33055 transitions. Word has length 269 [2023-12-22 17:15:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:15:09,833 INFO L495 AbstractCegarLoop]: Abstraction has 27911 states and 33055 transitions. [2023-12-22 17:15:09,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 33055 transitions. [2023-12-22 17:15:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-22 17:15:09,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:15:09,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:15:09,841 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 (8)] Ended with exit code 0 [2023-12-22 17:15:10,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:15:10,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:15:10,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:15:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1779680862, now seen corresponding path program 1 times [2023-12-22 17:15:10,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:15:10,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117443991] [2023-12-22 17:15:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:15:10,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:15:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:15:10,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:15:10,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 17:15:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:15:10,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:15:10,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:15:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 25 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:15:18,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:15:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 25 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:15:26,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:15:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117443991] [2023-12-22 17:15:26,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117443991] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 17:15:26,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 17:15:26,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 17:15:26,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050615491] [2023-12-22 17:15:26,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 17:15:26,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 17:15:26,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:15:26,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 17:15:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 17:15:26,337 INFO L87 Difference]: Start difference. First operand 27911 states and 33055 transitions. Second operand has 7 states, 7 states have (on average 79.71428571428571) internal successors, (558), 6 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:55,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:15:56,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:15:59,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 17:17:36,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 17:17:36,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 17:17:36,306 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 8157 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9767 mSolverCounterSat, 1590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8157 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 11357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1590 IncrementalHoareTripleChecker+Valid, 9767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:17:36,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8157 Valid, 334 Invalid, 11357 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1590 Valid, 9767 Invalid, 0 Unknown, 0 Unchecked, 128.9s Time] [2023-12-22 17:17:36,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:17:36,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 17:17:36,345 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:17:36,345 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 [2023-12-22 17:17:36,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:17:36,512 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (27911states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (28163 states constructed, input type IntersectNwa). [2023-12-22 17:17:36,515 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:17:36,518 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:17:36,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:17:36 BoogieIcfgContainer [2023-12-22 17:17:36,520 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:17:36,520 INFO L158 Benchmark]: Toolchain (without parser) took 854449.71ms. Allocated memory was 199.2MB in the beginning and 734.0MB in the end (delta: 534.8MB). Free memory was 131.1MB in the beginning and 399.8MB in the end (delta: -268.8MB). Peak memory consumption was 448.4MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,520 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 199.2MB. Free memory is still 156.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:17:36,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2752.75ms. Allocated memory was 199.2MB in the beginning and 271.6MB in the end (delta: 72.4MB). Free memory was 130.6MB in the beginning and 181.1MB in the end (delta: -50.5MB). Peak memory consumption was 148.0MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 305.09ms. Allocated memory is still 271.6MB. Free memory was 181.1MB in the beginning and 111.5MB in the end (delta: 69.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,521 INFO L158 Benchmark]: Boogie Preprocessor took 549.84ms. Allocated memory is still 271.6MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,521 INFO L158 Benchmark]: RCFGBuilder took 62863.57ms. Allocated memory was 271.6MB in the beginning and 734.0MB in the end (delta: 462.4MB). Free memory was 109.4MB in the beginning and 325.9MB in the end (delta: -216.5MB). Peak memory consumption was 420.0MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,521 INFO L158 Benchmark]: TraceAbstraction took 787970.99ms. Allocated memory is still 734.0MB. Free memory was 324.8MB in the beginning and 399.8MB in the end (delta: -75.0MB). Peak memory consumption was 106.9MB. Max. memory is 8.0GB. [2023-12-22 17:17:36,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 199.2MB. Free memory is still 156.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2752.75ms. Allocated memory was 199.2MB in the beginning and 271.6MB in the end (delta: 72.4MB). Free memory was 130.6MB in the beginning and 181.1MB in the end (delta: -50.5MB). Peak memory consumption was 148.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 305.09ms. Allocated memory is still 271.6MB. Free memory was 181.1MB in the beginning and 111.5MB in the end (delta: 69.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 549.84ms. Allocated memory is still 271.6MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. * RCFGBuilder took 62863.57ms. Allocated memory was 271.6MB in the beginning and 734.0MB in the end (delta: 462.4MB). Free memory was 109.4MB in the beginning and 325.9MB in the end (delta: -216.5MB). Peak memory consumption was 420.0MB. Max. memory is 8.0GB. * TraceAbstraction took 787970.99ms. Allocated memory is still 734.0MB. Free memory was 324.8MB in the beginning and 399.8MB in the end (delta: -75.0MB). Peak memory consumption was 106.9MB. 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: 215]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 215). Cancelled while NwaCegarLoop was constructing difference of abstraction (27911states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (28163 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 787.9s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 760.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17866 SdHoareTripleChecker+Valid, 756.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17866 mSDsluCounter, 13151 SdHoareTripleChecker+Invalid, 633.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1421 mSDsCounter, 5914 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38136 IncrementalHoareTripleChecker+Invalid, 44050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5914 mSolverCounterUnsat, 11730 mSDtfsCounter, 38136 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1663 GetRequests, 1648 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27911occurred in iteration=7, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 96 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.3s InterpolantComputationTime, 1371 NumberOfCodeBlocks, 1371 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1659 ConstructedInterpolants, 0 QuantifiedInterpolants, 11305 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1680 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 477/547 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