/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 07:59:11,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 07:59:11,983 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 07:59:11,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 07:59:11,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 07:59:12,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 07:59:12,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 07:59:12,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 07:59:12,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 07:59:12,026 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 07:59:12,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 07:59:12,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 07:59:12,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 07:59:12,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 07:59:12,027 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 07:59:12,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 07:59:12,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 07:59:12,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 07:59:12,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 07:59:12,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 07:59:12,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 07:59:12,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 07:59:12,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 07:59:12,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 07:59:12,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 07:59:12,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 07:59:12,032 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 07:59:12,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 07:59:12,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 07:59:12,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 07:59:12,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 07:59:12,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 07:59:12,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 07:59:12,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 07:59:12,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 07:59:12,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 07:59:12,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 07:59:12,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 07:59:12,035 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 07:59:12,035 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 07:59:12,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 07:59:12,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 07:59:12,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 07:59:12,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 07:59:12,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 07:59:12,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 07:59:12,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 07:59:12,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 07:59:12,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 07:59:12,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 07:59:12,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-06 07:59:13,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 07:59:13,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 07:59:13,974 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-06 07:59:13,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09964e3eb/7bee5fd858314a318e3875acd57bdf90/FLAG6020e4480 [2024-11-06 07:59:13,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09964e3eb/7bee5fd858314a318e3875acd57bdf90 [2024-11-06 07:59:13,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 07:59:13,999 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 07:59:14,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 07:59:14,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 07:59:14,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 07:59:14,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:59:13" (1/1) ... [2024-11-06 07:59:14,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fc1909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14, skipping insertion in model container [2024-11-06 07:59:14,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:59:13" (1/1) ... [2024-11-06 07:59:14,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 07:59:14,216 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i[915,928] [2024-11-06 07:59:14,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 07:59:14,262 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 07:59:14,272 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i[915,928] [2024-11-06 07:59:14,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 07:59:14,312 INFO L204 MainTranslator]: Completed translation [2024-11-06 07:59:14,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14 WrapperNode [2024-11-06 07:59:14,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 07:59:14,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 07:59:14,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 07:59:14,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 07:59:14,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,354 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-06 07:59:14,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 07:59:14,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 07:59:14,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 07:59:14,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 07:59:14,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,389 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]. [2024-11-06 07:59:14,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 07:59:14,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 07:59:14,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 07:59:14,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 07:59:14,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (1/1) ... [2024-11-06 07:59:14,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 07:59:14,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:14,443 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) [2024-11-06 07:59:14,446 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 [2024-11-06 07:59:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 07:59:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 07:59:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 07:59:14,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 07:59:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 07:59:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 07:59:14,565 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 07:59:14,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 07:59:14,867 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-06 07:59:14,868 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 07:59:14,887 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 07:59:14,888 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 07:59:14,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:59:14 BoogieIcfgContainer [2024-11-06 07:59:14,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 07:59:14,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 07:59:14,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 07:59:14,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 07:59:14,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:59:13" (1/3) ... [2024-11-06 07:59:14,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ebbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:59:14, skipping insertion in model container [2024-11-06 07:59:14,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:14" (2/3) ... [2024-11-06 07:59:14,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ebbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:59:14, skipping insertion in model container [2024-11-06 07:59:14,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:59:14" (3/3) ... [2024-11-06 07:59:14,900 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-06 07:59:14,917 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 07:59:14,917 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 07:59:15,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 07:59:15,040 INFO L333 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, 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;@66b70998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 07:59:15,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 07:59:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 07:59:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 07:59:15,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 07:59:15,058 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 07:59:15,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 07:59:15,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 07:59:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash -892636444, now seen corresponding path program 1 times [2024-11-06 07:59:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 07:59:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221505821] [2024-11-06 07:59:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 07:59:15,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:15,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:15,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 07:59:15,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 07:59:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 07:59:15,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 07:59:15,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 07:59:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-06 07:59:15,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 07:59:15,322 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 07:59:15,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221505821] [2024-11-06 07:59:15,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221505821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 07:59:15,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 07:59:15,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 07:59:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468986398] [2024-11-06 07:59:15,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 07:59:15,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 07:59:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 07:59:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 07:59:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 07:59:15,355 INFO L87 Difference]: Start difference. First operand has 51 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 07:59:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 07:59:15,384 INFO L93 Difference]: Finished difference Result 95 states and 162 transitions. [2024-11-06 07:59:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 07:59:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2024-11-06 07:59:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 07:59:15,393 INFO L225 Difference]: With dead ends: 95 [2024-11-06 07:59:15,393 INFO L226 Difference]: Without dead ends: 47 [2024-11-06 07:59:15,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 07:59:15,403 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 07:59:15,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 07:59:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-06 07:59:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-06 07:59:15,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 07:59:15,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-06 07:59:15,445 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 112 [2024-11-06 07:59:15,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 07:59:15,446 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-06 07:59:15,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 07:59:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-06 07:59:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 07:59:15,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 07:59:15,453 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 07:59:15,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 07:59:15,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:15,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 07:59:15,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 07:59:15,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1266591324, now seen corresponding path program 1 times [2024-11-06 07:59:15,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 07:59:15,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29864456] [2024-11-06 07:59:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 07:59:15,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:15,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:15,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 07:59:15,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 07:59:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 07:59:15,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-06 07:59:15,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 07:59:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 07:59:16,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 07:59:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 07:59:22,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 07:59:22,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29864456] [2024-11-06 07:59:22,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29864456] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 07:59:22,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 07:59:22,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-06 07:59:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358759654] [2024-11-06 07:59:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 07:59:22,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 07:59:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 07:59:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 07:59:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-06 07:59:22,164 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 07:59:23,930 INFO L93 Difference]: Finished difference Result 112 states and 161 transitions. [2024-11-06 07:59:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 07:59:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-06 07:59:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 07:59:23,934 INFO L225 Difference]: With dead ends: 112 [2024-11-06 07:59:23,935 INFO L226 Difference]: Without dead ends: 110 [2024-11-06 07:59:23,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-06 07:59:23,938 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 147 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 07:59:23,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 157 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 07:59:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-06 07:59:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 75. [2024-11-06 07:59:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 07:59:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 107 transitions. [2024-11-06 07:59:23,979 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 107 transitions. Word has length 112 [2024-11-06 07:59:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 07:59:23,981 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 107 transitions. [2024-11-06 07:59:23,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2024-11-06 07:59:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 07:59:23,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 07:59:23,985 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 07:59:24,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 07:59:24,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:24,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 07:59:24,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 07:59:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1264744282, now seen corresponding path program 1 times [2024-11-06 07:59:24,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 07:59:24,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733871924] [2024-11-06 07:59:24,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 07:59:24,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:24,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:24,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 07:59:24,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 07:59:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 07:59:24,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 07:59:24,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 07:59:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 07:59:24,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 07:59:24,329 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 07:59:24,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733871924] [2024-11-06 07:59:24,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733871924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 07:59:24,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 07:59:24,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 07:59:24,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756760231] [2024-11-06 07:59:24,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 07:59:24,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 07:59:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 07:59:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 07:59:24,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 07:59:24,335 INFO L87 Difference]: Start difference. First operand 75 states and 107 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 07:59:24,514 INFO L93 Difference]: Finished difference Result 180 states and 259 transitions. [2024-11-06 07:59:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 07:59:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-06 07:59:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 07:59:24,518 INFO L225 Difference]: With dead ends: 180 [2024-11-06 07:59:24,518 INFO L226 Difference]: Without dead ends: 108 [2024-11-06 07:59:24,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 07:59:24,520 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 59 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 07:59:24,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 234 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 07:59:24,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-06 07:59:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-06 07:59:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 58 states have internal predecessors, (61), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-06 07:59:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2024-11-06 07:59:24,560 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 112 [2024-11-06 07:59:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 07:59:24,561 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2024-11-06 07:59:24,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2024-11-06 07:59:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 07:59:24,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 07:59:24,563 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 07:59:24,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 07:59:24,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:24,769 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 07:59:24,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 07:59:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1209333022, now seen corresponding path program 1 times [2024-11-06 07:59:24,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 07:59:24,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793246060] [2024-11-06 07:59:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 07:59:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:24,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:24,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 07:59:24,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 07:59:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 07:59:24,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-06 07:59:24,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 07:59:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 07:59:26,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 07:59:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 07:59:29,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 07:59:29,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793246060] [2024-11-06 07:59:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793246060] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 07:59:29,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 07:59:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-06 07:59:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315759028] [2024-11-06 07:59:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 07:59:29,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 07:59:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 07:59:29,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 07:59:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-06 07:59:29,654 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 07:59:30,255 INFO L93 Difference]: Finished difference Result 115 states and 159 transitions. [2024-11-06 07:59:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 07:59:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-06 07:59:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 07:59:30,260 INFO L225 Difference]: With dead ends: 115 [2024-11-06 07:59:30,260 INFO L226 Difference]: Without dead ends: 113 [2024-11-06 07:59:30,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-06 07:59:30,262 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 48 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 07:59:30,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 244 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 07:59:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-06 07:59:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 54. [2024-11-06 07:59:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 07:59:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-11-06 07:59:30,292 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 112 [2024-11-06 07:59:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 07:59:30,293 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-11-06 07:59:30,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-11-06 07:59:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 07:59:30,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 07:59:30,295 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 07:59:30,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 07:59:30,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:30,500 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 07:59:30,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 07:59:30,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1207485980, now seen corresponding path program 1 times [2024-11-06 07:59:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 07:59:30,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20406575] [2024-11-06 07:59:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 07:59:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:30,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 07:59:30,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 07:59:30,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 07:59:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 07:59:30,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-06 07:59:30,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 07:59:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 07:59:31,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 07:59:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 07:59:34,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 07:59:34,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20406575] [2024-11-06 07:59:34,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20406575] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 07:59:34,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 07:59:34,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-06 07:59:34,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526875267] [2024-11-06 07:59:34,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 07:59:34,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 07:59:34,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 07:59:34,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 07:59:34,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-06 07:59:34,103 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 07:59:34,524 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2024-11-06 07:59:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 07:59:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-06 07:59:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 07:59:34,526 INFO L225 Difference]: With dead ends: 91 [2024-11-06 07:59:34,526 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 07:59:34,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-06 07:59:34,528 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 07:59:34,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 461 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 07:59:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 07:59:34,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 07:59:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-06 07:59:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 07:59:34,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-11-06 07:59:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 07:59:34,530 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 07:59:34,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 07:59:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 07:59:34,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 07:59:34,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 07:59:34,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 07:59:34,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 07:59:34,737 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-06 07:59:34,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 07:59:43,546 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 07:59:43,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:59:43 BoogieIcfgContainer [2024-11-06 07:59:43,567 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 07:59:43,568 INFO L158 Benchmark]: Toolchain (without parser) took 29568.61ms. Allocated memory was 199.2MB in the beginning and 828.4MB in the end (delta: 629.1MB). Free memory was 151.9MB in the beginning and 480.3MB in the end (delta: -328.5MB). Peak memory consumption was 478.8MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,568 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 199.2MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-06 07:59:43,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.46ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 136.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 199.2MB. Free memory was 136.8MB in the beginning and 135.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,569 INFO L158 Benchmark]: Boogie Preprocessor took 52.11ms. Allocated memory is still 199.2MB. Free memory was 135.1MB in the beginning and 132.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,573 INFO L158 Benchmark]: RCFGBuilder took 480.37ms. Allocated memory is still 199.2MB. Free memory was 132.3MB in the beginning and 116.9MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,573 INFO L158 Benchmark]: TraceAbstraction took 28676.86ms. Allocated memory was 199.2MB in the beginning and 828.4MB in the end (delta: 629.1MB). Free memory was 116.2MB in the beginning and 480.3MB in the end (delta: -364.1MB). Peak memory consumption was 443.1MB. Max. memory is 8.0GB. [2024-11-06 07:59:43,575 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 199.2MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.46ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 136.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 199.2MB. Free memory was 136.8MB in the beginning and 135.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.11ms. Allocated memory is still 199.2MB. Free memory was 135.1MB in the beginning and 132.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 480.37ms. Allocated memory is still 199.2MB. Free memory was 132.3MB in the beginning and 116.9MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 28676.86ms. Allocated memory was 199.2MB in the beginning and 828.4MB in the end (delta: 629.1MB). Free memory was 116.2MB in the beginning and 480.3MB in the end (delta: -364.1MB). Peak memory consumption was 443.1MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.8s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 1164 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 774 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 486 IncrementalHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 390 mSDtfsCounter, 486 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 906 GetRequests, 851 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 32, 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, 5 MinimizatonAttempts, 95 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 888 ConstructedInterpolants, 2 QuantifiedInterpolants, 1799 SizeOfPredicates, 42 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 4824/4896 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((((((var_1_14 == var_1_17) && (var_1_19 == var_1_18)) && (var_1_19 == var_1_20)) || !(var_1_18 >= (var_1_19 * 8))) && !(var_1_18 >= (var_1_8 * 8))) || (((((var_1_19 == var_1_8) && (var_1_14 == var_1_17)) && (((var_1_16 + -((var_1_14 + var_1_15) % 4294967296)) % 4294967296) == var_1_12)) && (var_1_19 == var_1_18)) && (var_1_19 == var_1_20))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (!(var_1_18 >= (var_1_8 * 8)) || !(var_1_19 > var_1_8)) Ensures: ((!(var_1_18 >= (var_1_8 * 8)) || !(var_1_19 > var_1_8)) && ((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20)))) RESULT: Ultimate proved your program to be correct! [2024-11-06 07:59:43,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...