/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:35:07,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:35:07,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:35:07,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:35:07,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:35:07,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:35:07,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:35:07,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:35:07,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:35:07,350 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:35:07,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:35:07,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:35:07,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:35:07,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:35:07,352 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:35:07,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:35:07,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:35:07,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:35:07,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:35:07,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:35:07,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:35:07,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:35:07,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:35:07,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:35:07,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:35:07,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:35:07,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:35:07,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:35:07,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:35:07,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:35:07,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:35:07,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:35:07,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:35:07,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:35:07,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:35:07,560 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:35:07,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2023-12-16 03:35:08,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:35:08,759 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:35:08,760 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2023-12-16 03:35:08,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3846fc44/c6f255a2044d45188d6f664a92fb5621/FLAG6ef038941 [2023-12-16 03:35:08,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3846fc44/c6f255a2044d45188d6f664a92fb5621 [2023-12-16 03:35:08,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:35:08,787 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:35:08,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:35:08,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:35:08,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:35:08,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:35:08" (1/1) ... [2023-12-16 03:35:08,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4843d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:08, skipping insertion in model container [2023-12-16 03:35:08,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:35:08" (1/1) ... [2023-12-16 03:35:08,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:35:08,945 WARN L239 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-54.i[916,929] [2023-12-16 03:35:08,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:35:08,992 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:35:09,000 WARN L239 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-54.i[916,929] [2023-12-16 03:35:09,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:35:09,028 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:35:09,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09 WrapperNode [2023-12-16 03:35:09,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:35:09,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:35:09,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:35:09,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:35:09,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,067 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-12-16 03:35:09,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:35:09,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:35:09,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:35:09,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:35:09,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,097 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 03:35:09,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:35:09,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:35:09,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:35:09,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:35:09,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (1/1) ... [2023-12-16 03:35:09,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:35:09,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:35:09,165 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 03:35:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:35:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:35:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:35:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:35:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:35:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:35:09,183 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 03:35:09,249 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:35:09,253 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:35:09,468 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:35:09,509 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:35:09,509 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:35:09,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:35:09 BoogieIcfgContainer [2023-12-16 03:35:09,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:35:09,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:35:09,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:35:09,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:35:09,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:35:08" (1/3) ... [2023-12-16 03:35:09,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15776e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:35:09, skipping insertion in model container [2023-12-16 03:35:09,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:35:09" (2/3) ... [2023-12-16 03:35:09,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15776e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:35:09, skipping insertion in model container [2023-12-16 03:35:09,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:35:09" (3/3) ... [2023-12-16 03:35:09,517 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-54.i [2023-12-16 03:35:09,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:35:09,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:35:09,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:35:09,576 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;@2bf38504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:35:09,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:35:09,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 03:35:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 03:35:09,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:35:09,587 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:09,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:35:09,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:35:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2073708002, now seen corresponding path program 1 times [2023-12-16 03:35:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:35:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955699804] [2023-12-16 03:35:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:35:09,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:35:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:35:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:35:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:35:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:35:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:35:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:35:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:35:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:35:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:35:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:35:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:35:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:35:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:35:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:35:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 03:35:09,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:35:09,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955699804] [2023-12-16 03:35:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955699804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:35:09,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:35:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:35:09,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122773915] [2023-12-16 03:35:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:35:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:35:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:35:09,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:35:09,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:35:09,934 INFO L87 Difference]: Start difference. First operand has 43 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 03:35:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:35:09,982 INFO L93 Difference]: Finished difference Result 83 states and 144 transitions. [2023-12-16 03:35:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:35:09,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2023-12-16 03:35:09,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:35:09,991 INFO L225 Difference]: With dead ends: 83 [2023-12-16 03:35:09,991 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 03:35:09,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 03:35:10,000 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:35:10,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:35:10,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 03:35:10,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-16 03:35:10,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 03:35:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 61 transitions. [2023-12-16 03:35:10,038 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 61 transitions. Word has length 87 [2023-12-16 03:35:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:35:10,039 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 61 transitions. [2023-12-16 03:35:10,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 03:35:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-12-16 03:35:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 03:35:10,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:35:10,043 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:10,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 03:35:10,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:35:10,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:35:10,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2073892642, now seen corresponding path program 1 times [2023-12-16 03:35:10,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:35:10,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706988659] [2023-12-16 03:35:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:35:10,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:35:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:35:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:35:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:35:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:35:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:35:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:35:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:35:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:35:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:35:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:35:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:35:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:35:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:35:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:35:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 03:35:12,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:35:12,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706988659] [2023-12-16 03:35:12,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706988659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:35:12,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:35:12,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 03:35:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971986420] [2023-12-16 03:35:12,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:35:12,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:35:12,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:35:12,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:35:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:35:12,188 INFO L87 Difference]: Start difference. First operand 41 states and 61 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 03:35:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:35:12,462 INFO L93 Difference]: Finished difference Result 101 states and 149 transitions. [2023-12-16 03:35:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 03:35:12,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-16 03:35:12,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:35:12,464 INFO L225 Difference]: With dead ends: 101 [2023-12-16 03:35:12,464 INFO L226 Difference]: Without dead ends: 61 [2023-12-16 03:35:12,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-16 03:35:12,476 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 50 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:35:12,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 244 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:35:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-16 03:35:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2023-12-16 03:35:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 03:35:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2023-12-16 03:35:12,496 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 87 [2023-12-16 03:35:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:35:12,498 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2023-12-16 03:35:12,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 03:35:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-12-16 03:35:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 03:35:12,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:35:12,501 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:12,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 03:35:12,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:35:12,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:35:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1411728028, now seen corresponding path program 1 times [2023-12-16 03:35:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:35:12,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430736411] [2023-12-16 03:35:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:35:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:35:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:35:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:35:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:35:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:35:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:35:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:35:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:35:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:35:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:35:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:35:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:35:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:35:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:35:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:35:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 03:35:13,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:35:13,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430736411] [2023-12-16 03:35:13,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430736411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:35:13,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:35:13,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 03:35:13,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737813069] [2023-12-16 03:35:13,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:35:13,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:35:13,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:35:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:35:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:35:13,453 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 03:35:13,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:35:13,743 INFO L93 Difference]: Finished difference Result 137 states and 196 transitions. [2023-12-16 03:35:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 03:35:13,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-16 03:35:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:35:13,747 INFO L225 Difference]: With dead ends: 137 [2023-12-16 03:35:13,747 INFO L226 Difference]: Without dead ends: 91 [2023-12-16 03:35:13,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-16 03:35:13,754 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 83 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:35:13,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 323 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:35:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-16 03:35:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2023-12-16 03:35:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.263157894736842) internal successors, (72), 59 states have internal predecessors, (72), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 03:35:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2023-12-16 03:35:13,773 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 87 [2023-12-16 03:35:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:35:13,773 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2023-12-16 03:35:13,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 03:35:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2023-12-16 03:35:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 03:35:13,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:35:13,775 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:13,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 03:35:13,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:35:13,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:35:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1121071263, now seen corresponding path program 1 times [2023-12-16 03:35:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:35:13,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750063937] [2023-12-16 03:35:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:35:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:35:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:35:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:35:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:35:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:35:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:35:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:35:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:35:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:35:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:35:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:35:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:35:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:35:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:35:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:35:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 03:35:13,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:35:13,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750063937] [2023-12-16 03:35:13,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750063937] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 03:35:13,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083373007] [2023-12-16 03:35:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:35:13,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:35:13,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:35:13,929 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) [2023-12-16 03:35:13,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:35:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:35:13,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:35:14,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:35:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-16 03:35:14,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:35:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 03:35:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083373007] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:35:14,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 03:35:14,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-12-16 03:35:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8593931] [2023-12-16 03:35:14,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 03:35:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:35:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:35:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:35:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:35:14,207 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-16 03:35:14,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:35:14,303 INFO L93 Difference]: Finished difference Result 164 states and 221 transitions. [2023-12-16 03:35:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:35:14,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 88 [2023-12-16 03:35:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:35:14,305 INFO L225 Difference]: With dead ends: 164 [2023-12-16 03:35:14,305 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 03:35:14,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 03:35:14,311 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:35:14,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 58 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:35:14,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 03:35:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 03:35:14,313 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) [2023-12-16 03:35:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 03:35:14,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2023-12-16 03:35:14,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:35:14,313 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 03:35:14,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-16 03:35:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 03:35:14,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 03:35:14,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:35:14,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:35:14,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:35:14,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 03:35:14,561 INFO L899 garLoopResultBuilder]: For program point L89(lines 68 90) no Hoare annotation was computed. [2023-12-16 03:35:14,561 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,562 INFO L895 garLoopResultBuilder]: At program point L85-1(line 85) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 52) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 44 52) no Hoare annotation was computed. [2023-12-16 03:35:14,562 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,562 INFO L895 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,563 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 42) no Hoare annotation was computed. [2023-12-16 03:35:14,563 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2023-12-16 03:35:14,563 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 67) no Hoare annotation was computed. [2023-12-16 03:35:14,563 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-16 03:35:14,563 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2023-12-16 03:35:14,563 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,566 INFO L895 garLoopResultBuilder]: At program point L82-1(line 82) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,566 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 51) no Hoare annotation was computed. [2023-12-16 03:35:14,566 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-16 03:35:14,566 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,567 INFO L895 garLoopResultBuilder]: At program point L70-1(line 70) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 62) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 66) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,567 INFO L895 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-16 03:35:14,567 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 100 106) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,568 INFO L899 garLoopResultBuilder]: For program point L100-3(lines 100 106) no Hoare annotation was computed. [2023-12-16 03:35:14,568 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,568 INFO L895 garLoopResultBuilder]: At program point L88-1(line 88) the Hoare annotation is: (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0) [2023-12-16 03:35:14,568 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 63) no Hoare annotation was computed. [2023-12-16 03:35:14,569 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-16 03:35:14,569 INFO L902 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: true [2023-12-16 03:35:14,569 INFO L902 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: true [2023-12-16 03:35:14,569 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-16 03:35:14,569 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-16 03:35:14,569 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-16 03:35:14,569 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-16 03:35:14,572 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 03:35:14,574 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:35:14,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:35:14 BoogieIcfgContainer [2023-12-16 03:35:14,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:35:14,583 INFO L158 Benchmark]: Toolchain (without parser) took 5796.64ms. Allocated memory was 255.9MB in the beginning and 377.5MB in the end (delta: 121.6MB). Free memory was 207.6MB in the beginning and 126.7MB in the end (delta: 80.9MB). Peak memory consumption was 204.1MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,583 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:35:14,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.32ms. Allocated memory is still 255.9MB. Free memory was 207.1MB in the beginning and 194.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.55ms. Allocated memory is still 255.9MB. Free memory was 194.5MB in the beginning and 192.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,584 INFO L158 Benchmark]: Boogie Preprocessor took 53.61ms. Allocated memory is still 255.9MB. Free memory was 192.4MB in the beginning and 189.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,584 INFO L158 Benchmark]: RCFGBuilder took 387.07ms. Allocated memory is still 255.9MB. Free memory was 189.3MB in the beginning and 171.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,584 INFO L158 Benchmark]: TraceAbstraction took 5071.65ms. Allocated memory was 255.9MB in the beginning and 377.5MB in the end (delta: 121.6MB). Free memory was 170.9MB in the beginning and 126.7MB in the end (delta: 44.2MB). Peak memory consumption was 167.4MB. Max. memory is 8.0GB. [2023-12-16 03:35:14,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.32ms. Allocated memory is still 255.9MB. Free memory was 207.1MB in the beginning and 194.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.55ms. Allocated memory is still 255.9MB. Free memory was 194.5MB in the beginning and 192.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.61ms. Allocated memory is still 255.9MB. Free memory was 192.4MB in the beginning and 189.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 387.07ms. Allocated memory is still 255.9MB. Free memory was 189.3MB in the beginning and 171.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5071.65ms. Allocated memory was 255.9MB in the beginning and 377.5MB in the end (delta: 121.6MB). Free memory was 170.9MB in the beginning and 126.7MB in the end (delta: 44.2MB). Peak memory consumption was 167.4MB. 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, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 683 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 458 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 225 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 105 PreInvPairs, 129 NumberOfFragments, 94 HoareAnnotationTreeSize, 105 FormulaSimplifications, 215 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FormulaSimplificationsInter, 275 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 1490 SizeOfPredicates, 3 NumberOfNonLiveVariables, 214 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2112/2184 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: 100]: Loop Invariant Derived loop invariant: (((var_1_9 / 256) * 256) == var_1_9) RESULT: Ultimate proved your program to be correct! [2023-12-16 03:35:14,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...