/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/Problem10_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:03:15,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:03:15,857 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:03:15,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:03:15,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:03:15,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:03:15,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:03:15,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:03:15,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:03:15,890 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:03:15,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:03:15,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:03:15,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:03:15,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:03:15,892 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:03:15,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:03:15,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:03:15,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:03:15,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:03:15,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:03:15,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:03:15,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:03:15,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:03:15,894 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:03:15,894 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:03:15,894 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:03:15,895 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:03:15,895 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:03:15,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:03:15,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:03:15,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:03:15,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:03:15,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:03:15,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:03:15,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:03:15,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:03:15,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:03:15,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:03:15,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:03:15,899 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:03:15,899 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:03:16,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:03:16,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:03:16,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:03:16,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:03:16,117 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:03:16,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label31.c [2023-12-16 09:03:17,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:03:17,398 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:03:17,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label31.c [2023-12-16 09:03:17,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aa675d29/fa213334d836427b9e3d299a4f0f1352/FLAG1c6b8dcc7 [2023-12-16 09:03:17,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aa675d29/fa213334d836427b9e3d299a4f0f1352 [2023-12-16 09:03:17,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:03:17,434 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:03:17,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:03:17,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:03:17,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:03:17,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10abb059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17, skipping insertion in model container [2023-12-16 09:03:17,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,486 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:03:17,651 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/Problem10_label31.c[5009,5022] [2023-12-16 09:03:17,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:03:17,773 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:03:17,792 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/Problem10_label31.c[5009,5022] [2023-12-16 09:03:17,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:03:17,869 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:03:17,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17 WrapperNode [2023-12-16 09:03:17,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:03:17,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:03:17,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:03:17,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:03:17,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,930 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 596 [2023-12-16 09:03:17,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:03:17,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:03:17,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:03:17,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:03:17,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,967 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 09:03:17,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:17,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:18,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:18,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:18,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:18,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:03:18,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:03:18,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:03:18,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:03:18,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (1/1) ... [2023-12-16 09:03:18,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:03:18,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:03:18,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 09:03:18,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 09:03:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:03:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:03:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:03:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:03:18,152 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:03:18,154 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:03:20,394 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:03:20,442 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:03:20,443 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:03:20,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:20 BoogieIcfgContainer [2023-12-16 09:03:20,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:03:20,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:03:20,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:03:20,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:03:20,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:03:17" (1/3) ... [2023-12-16 09:03:20,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eac851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:20, skipping insertion in model container [2023-12-16 09:03:20,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:17" (2/3) ... [2023-12-16 09:03:20,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eac851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:20, skipping insertion in model container [2023-12-16 09:03:20,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:20" (3/3) ... [2023-12-16 09:03:20,450 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label31.c [2023-12-16 09:03:20,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:03:20,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:03:20,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:03:20,511 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;@59c1e24f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:03:20,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:03:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 09:03:20,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:03:20,524 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] [2023-12-16 09:03:20,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:03:20,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:03:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1777785250, now seen corresponding path program 1 times [2023-12-16 09:03:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:03:20,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766881220] [2023-12-16 09:03:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:03:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:03:20,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:03:20,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 09:03:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:03:20,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:03:20,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:03:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:03:20,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:03:20,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:03:20,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766881220] [2023-12-16 09:03:20,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766881220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:03:20,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:03:20,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:03:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716669958] [2023-12-16 09:03:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:03:20,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:03:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:03:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:03:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:03:20,701 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:20,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:03:20,746 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-16 09:03:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:03:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2023-12-16 09:03:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:03:20,755 INFO L225 Difference]: With dead ends: 287 [2023-12-16 09:03:20,756 INFO L226 Difference]: Without dead ends: 142 [2023-12-16 09:03:20,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:03:20,762 INFO L413 NwaCegarLoop]: 217 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, 217 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 [2023-12-16 09:03:20,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:03:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-16 09:03:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-16 09:03:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-16 09:03:20,806 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 42 [2023-12-16 09:03:20,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:03:20,806 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-16 09:03:20,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-16 09:03:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 09:03:20,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:03:20,808 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] [2023-12-16 09:03:20,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 09:03:21,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:21,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:03:21,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:03:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2077735798, now seen corresponding path program 1 times [2023-12-16 09:03:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:03:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122368157] [2023-12-16 09:03:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:03:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:03:21,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:03:21,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 09:03:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:03:21,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:03:21,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:03:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:03:21,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:03:21,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:03:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122368157] [2023-12-16 09:03:21,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122368157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:03:21,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:03:21,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:03:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232908500] [2023-12-16 09:03:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:03:21,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:03:21,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:03:21,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:03:21,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:03:21,140 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:03:23,648 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-16 09:03:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:03:23,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2023-12-16 09:03:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:03:23,651 INFO L225 Difference]: With dead ends: 422 [2023-12-16 09:03:23,651 INFO L226 Difference]: Without dead ends: 281 [2023-12-16 09:03:23,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:03:23,652 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:03:23,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 34 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:03:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-16 09:03:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-16 09:03:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.45) internal successors, (406), 280 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 406 transitions. [2023-12-16 09:03:23,664 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 406 transitions. Word has length 42 [2023-12-16 09:03:23,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:03:23,664 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 406 transitions. [2023-12-16 09:03:23,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 406 transitions. [2023-12-16 09:03:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 09:03:23,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:03:23,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:03:23,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 09:03:23,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:23,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:03:23,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:03:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1837670478, now seen corresponding path program 1 times [2023-12-16 09:03:23,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:03:23,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62611757] [2023-12-16 09:03:23,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:03:23,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:23,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:03:23,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:03:23,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 09:03:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:03:23,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:03:23,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:03:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:03:24,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:03:24,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:03:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62611757] [2023-12-16 09:03:24,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62611757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:03:24,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:03:24,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:03:24,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068632435] [2023-12-16 09:03:24,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:03:24,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:03:24,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:03:24,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:03:24,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:03:24,031 INFO L87 Difference]: Start difference. First operand 281 states and 406 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:03:26,602 INFO L93 Difference]: Finished difference Result 839 states and 1215 transitions. [2023-12-16 09:03:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:03:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-16 09:03:26,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:03:26,605 INFO L225 Difference]: With dead ends: 839 [2023-12-16 09:03:26,605 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 09:03:26,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:03:26,607 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:03:26,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:03:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 09:03:26,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-16 09:03:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2795698924731183) internal successors, (714), 558 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 714 transitions. [2023-12-16 09:03:26,643 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 714 transitions. Word has length 110 [2023-12-16 09:03:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:03:26,643 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 714 transitions. [2023-12-16 09:03:26,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 714 transitions. [2023-12-16 09:03:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 09:03:26,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:03:26,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:03:26,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 09:03:26,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:26,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:03:26,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:03:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2106837907, now seen corresponding path program 1 times [2023-12-16 09:03:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:03:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745841680] [2023-12-16 09:03:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:03:26,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:03:26,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:03:26,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:03:26,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 09:03:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:03:26,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:03:26,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:03:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:03:27,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:03:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:03:29,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:03:29,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745841680] [2023-12-16 09:03:29,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745841680] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 09:03:29,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 09:03:29,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 09:03:29,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116442651] [2023-12-16 09:03:29,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 09:03:29,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 09:03:29,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:03:29,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 09:03:29,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 09:03:29,722 INFO L87 Difference]: Start difference. First operand 559 states and 714 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:03:40,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 09:04:02,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 09:04:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:05,722 INFO L93 Difference]: Finished difference Result 1991 states and 2598 transitions. [2023-12-16 09:04:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 09:04:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-16 09:04:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:05,731 INFO L225 Difference]: With dead ends: 1991 [2023-12-16 09:04:05,731 INFO L226 Difference]: Without dead ends: 1117 [2023-12-16 09:04:05,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 09:04:05,733 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 805 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:05,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 44 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 35.8s Time] [2023-12-16 09:04:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-12-16 09:04:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 698. [2023-12-16 09:04:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.223816355810617) internal successors, (853), 697 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 853 transitions. [2023-12-16 09:04:05,753 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 853 transitions. Word has length 117 [2023-12-16 09:04:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:05,754 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 853 transitions. [2023-12-16 09:04:05,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 853 transitions. [2023-12-16 09:04:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 09:04:05,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:05,763 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, 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] [2023-12-16 09:04:05,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 09:04:05,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:05,966 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:05,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:05,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1184447265, now seen corresponding path program 1 times [2023-12-16 09:04:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311134515] [2023-12-16 09:04:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:05,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:05,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:05,976 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:04:05,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:04:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:06,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:06,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:06,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:06,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:06,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311134515] [2023-12-16 09:04:06,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311134515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:06,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:06,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:04:06,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784295039] [2023-12-16 09:04:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:06,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:06,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:06,150 INFO L87 Difference]: Start difference. First operand 698 states and 853 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:08,870 INFO L93 Difference]: Finished difference Result 1534 states and 1964 transitions. [2023-12-16 09:04:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:08,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2023-12-16 09:04:08,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:08,874 INFO L225 Difference]: With dead ends: 1534 [2023-12-16 09:04:08,874 INFO L226 Difference]: Without dead ends: 976 [2023-12-16 09:04:08,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:08,882 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 76 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:08,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 211 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 09:04:08,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-16 09:04:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 837. [2023-12-16 09:04:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1985645933014355) internal successors, (1002), 836 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1002 transitions. [2023-12-16 09:04:08,894 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1002 transitions. Word has length 176 [2023-12-16 09:04:08,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:08,894 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1002 transitions. [2023-12-16 09:04:08,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:08,894 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1002 transitions. [2023-12-16 09:04:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-16 09:04:08,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:08,897 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, 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] [2023-12-16 09:04:08,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 09:04:09,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:09,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:09,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash 536003205, now seen corresponding path program 1 times [2023-12-16 09:04:09,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:09,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846409152] [2023-12-16 09:04:09,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:09,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:09,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:04:09,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:04:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:09,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:09,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-16 09:04:09,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:09,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:09,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846409152] [2023-12-16 09:04:09,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846409152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:09,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:09,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:04:09,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105671369] [2023-12-16 09:04:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:09,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:09,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:09,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:09,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:09,270 INFO L87 Difference]: Start difference. First operand 837 states and 1002 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:11,878 INFO L93 Difference]: Finished difference Result 1812 states and 2232 transitions. [2023-12-16 09:04:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 221 [2023-12-16 09:04:11,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:11,882 INFO L225 Difference]: With dead ends: 1812 [2023-12-16 09:04:11,882 INFO L226 Difference]: Without dead ends: 1115 [2023-12-16 09:04:11,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:11,883 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 102 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:11,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 207 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 09:04:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-16 09:04:11,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-16 09:04:11,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.180430879712747) internal successors, (1315), 1114 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1315 transitions. [2023-12-16 09:04:11,896 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1315 transitions. Word has length 221 [2023-12-16 09:04:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:11,896 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1315 transitions. [2023-12-16 09:04:11,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:11,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1315 transitions. [2023-12-16 09:04:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-16 09:04:11,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:11,898 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, 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] [2023-12-16 09:04:11,902 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 (7)] Ended with exit code 0 [2023-12-16 09:04:12,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:12,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:12,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1313630114, now seen corresponding path program 1 times [2023-12-16 09:04:12,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:12,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972485202] [2023-12-16 09:04:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:12,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:12,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:12,105 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:04:12,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 09:04:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:12,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:12,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:12,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:12,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:12,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972485202] [2023-12-16 09:04:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972485202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:12,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:04:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069067239] [2023-12-16 09:04:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:12,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:12,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:12,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:12,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:12,351 INFO L87 Difference]: Start difference. First operand 1115 states and 1315 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:14,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:14,772 INFO L93 Difference]: Finished difference Result 2368 states and 2888 transitions. [2023-12-16 09:04:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:14,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 231 [2023-12-16 09:04:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:14,776 INFO L225 Difference]: With dead ends: 2368 [2023-12-16 09:04:14,776 INFO L226 Difference]: Without dead ends: 1393 [2023-12-16 09:04:14,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:14,778 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:14,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 192 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 09:04:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-12-16 09:04:14,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2023-12-16 09:04:14,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.1767241379310345) internal successors, (1638), 1392 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:14,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1638 transitions. [2023-12-16 09:04:14,793 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1638 transitions. Word has length 231 [2023-12-16 09:04:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:14,793 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1638 transitions. [2023-12-16 09:04:14,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:04:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1638 transitions. [2023-12-16 09:04:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-16 09:04:14,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:14,796 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, 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, 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] [2023-12-16 09:04:14,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 09:04:15,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:15,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:15,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2088695991, now seen corresponding path program 1 times [2023-12-16 09:04:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:15,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618514948] [2023-12-16 09:04:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:15,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:15,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:15,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:04:15,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 09:04:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:15,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 09:04:15,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 50 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:16,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 09:04:31,434 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:04:31,442 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 [2023-12-16 09:04:31,699 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:04:31,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 09:04:31,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:31,904 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 291 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-16 09:04:31,909 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:04:31,911 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:04:31,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:04:31 BoogieIcfgContainer [2023-12-16 09:04:31,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:04:31,913 INFO L158 Benchmark]: Toolchain (without parser) took 74478.80ms. Allocated memory was 245.4MB in the beginning and 294.6MB in the end (delta: 49.3MB). Free memory was 199.7MB in the beginning and 189.7MB in the end (delta: 10.0MB). Peak memory consumption was 60.9MB. Max. memory is 8.0GB. [2023-12-16 09:04:31,913 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:04:31,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.67ms. Allocated memory is still 245.4MB. Free memory was 199.7MB in the beginning and 167.7MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-16 09:04:31,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.81ms. Allocated memory is still 245.4MB. Free memory was 167.7MB in the beginning and 162.5MB in the end (delta: 5.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 09:04:31,914 INFO L158 Benchmark]: Boogie Preprocessor took 85.64ms. Allocated memory is still 245.4MB. Free memory was 162.5MB in the beginning and 156.7MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 09:04:31,914 INFO L158 Benchmark]: RCFGBuilder took 2426.17ms. Allocated memory is still 245.4MB. Free memory was 156.7MB in the beginning and 127.7MB in the end (delta: 29.0MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. [2023-12-16 09:04:31,914 INFO L158 Benchmark]: TraceAbstraction took 71467.61ms. Allocated memory was 245.4MB in the beginning and 294.6MB in the end (delta: 49.3MB). Free memory was 127.2MB in the beginning and 189.7MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:04:31,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 433.67ms. Allocated memory is still 245.4MB. Free memory was 199.7MB in the beginning and 167.7MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.81ms. Allocated memory is still 245.4MB. Free memory was 167.7MB in the beginning and 162.5MB in the end (delta: 5.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.64ms. Allocated memory is still 245.4MB. Free memory was 162.5MB in the beginning and 156.7MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2426.17ms. Allocated memory is still 245.4MB. Free memory was 156.7MB in the beginning and 127.7MB in the end (delta: 29.0MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. * TraceAbstraction took 71467.61ms. Allocated memory was 245.4MB in the beginning and 294.6MB in the end (delta: 49.3MB). Free memory was 127.2MB in the beginning and 189.7MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 143). Cancelled while NwaCegarLoop was analyzing trace of length 291 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 49.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1267 SdHoareTripleChecker+Valid, 48.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1267 mSDsluCounter, 980 SdHoareTripleChecker+Invalid, 43.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 639 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3252 IncrementalHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 639 mSolverCounterUnsat, 927 mSDtfsCounter, 3252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1050 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1393occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 558 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 939 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1048 ConstructedInterpolants, 0 QuantifiedInterpolants, 2922 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1214 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 510/572 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