/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-41.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 13:26:22,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 13:26:22,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 13:26:22,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 13:26:22,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 13:26:22,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 13:26:22,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 13:26:22,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 13:26:22,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 13:26:22,164 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 13:26:22,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 13:26:22,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 13:26:22,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 13:26:22,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 13:26:22,166 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 13:26:22,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 13:26:22,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 13:26:22,166 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 13:26:22,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 13:26:22,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 13:26:22,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 13:26:22,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 13:26:22,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 13:26:22,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 13:26:22,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 13:26:22,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 13:26:22,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 13:26:22,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:26:22,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 13:26:22,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 13:26:22,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 13:26:22,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 13:26:22,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 13:26:22,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 13:26:22,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 13:26:22,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 13:26:22,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 13:26:22,376 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 13:26:22,377 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 13:26:22,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-41.i [2023-12-19 13:26:23,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 13:26:23,486 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 13:26:23,487 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-41.i [2023-12-19 13:26:23,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2e9c589/9f8c82e29f2b4452b1e8433914c7545b/FLAG5b08831f2 [2023-12-19 13:26:23,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2e9c589/9f8c82e29f2b4452b1e8433914c7545b [2023-12-19 13:26:23,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 13:26:23,508 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 13:26:23,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 13:26:23,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 13:26:23,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 13:26:23,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633ad0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23, skipping insertion in model container [2023-12-19 13:26:23,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 13:26:23,652 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_operatoramount_amount25_file-41.i[915,928] [2023-12-19 13:26:23,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:26:23,706 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 13:26:23,715 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_operatoramount_amount25_file-41.i[915,928] [2023-12-19 13:26:23,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:26:23,749 INFO L206 MainTranslator]: Completed translation [2023-12-19 13:26:23,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23 WrapperNode [2023-12-19 13:26:23,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 13:26:23,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 13:26:23,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 13:26:23,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 13:26:23,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,785 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-12-19 13:26:23,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 13:26:23,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 13:26:23,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 13:26:23,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 13:26:23,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,816 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]. [2023-12-19 13:26:23,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 13:26:23,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 13:26:23,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 13:26:23,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 13:26:23,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (1/1) ... [2023-12-19 13:26:23,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:26:23,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:26:23,874 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) [2023-12-19 13:26:23,876 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 [2023-12-19 13:26:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 13:26:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 13:26:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 13:26:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 13:26:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 13:26:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 13:26:23,939 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 13:26:23,941 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 13:26:24,098 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 13:26:24,135 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 13:26:24,135 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 13:26:24,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:26:24 BoogieIcfgContainer [2023-12-19 13:26:24,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 13:26:24,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 13:26:24,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 13:26:24,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 13:26:24,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:26:23" (1/3) ... [2023-12-19 13:26:24,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7dc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:26:24, skipping insertion in model container [2023-12-19 13:26:24,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:26:23" (2/3) ... [2023-12-19 13:26:24,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7dc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:26:24, skipping insertion in model container [2023-12-19 13:26:24,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:26:24" (3/3) ... [2023-12-19 13:26:24,141 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-41.i [2023-12-19 13:26:24,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 13:26:24,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 13:26:24,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 13:26:24,197 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;@4d24b6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 13:26:24,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 13:26:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:26:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 13:26:24,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:24,210 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:24,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:24,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:24,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1582176197, now seen corresponding path program 1 times [2023-12-19 13:26:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:24,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699192771] [2023-12-19 13:26:24,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:24,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:24,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699192771] [2023-12-19 13:26:24,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699192771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:24,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:24,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 13:26:24,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074355534] [2023-12-19 13:26:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:24,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 13:26:24,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:24,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 13:26:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:26:24,572 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 13:26:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:24,612 INFO L93 Difference]: Finished difference Result 86 states and 150 transitions. [2023-12-19 13:26:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 13:26:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2023-12-19 13:26:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:24,618 INFO L225 Difference]: With dead ends: 86 [2023-12-19 13:26:24,619 INFO L226 Difference]: Without dead ends: 42 [2023-12-19 13:26:24,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:26:24,623 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 [2023-12-19 13:26:24,623 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] [2023-12-19 13:26:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-19 13:26:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-19 13:26:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:26:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2023-12-19 13:26:24,652 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 99 [2023-12-19 13:26:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:24,652 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2023-12-19 13:26:24,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 13:26:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-12-19 13:26:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 13:26:24,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:24,658 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:24,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 13:26:24,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:24,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 509933509, now seen corresponding path program 1 times [2023-12-19 13:26:24,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:24,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936354099] [2023-12-19 13:26:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:25,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:25,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936354099] [2023-12-19 13:26:25,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936354099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:25,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:25,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 13:26:25,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993530639] [2023-12-19 13:26:25,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:25,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 13:26:25,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:25,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 13:26:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:26:25,958 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:26,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:26,234 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2023-12-19 13:26:26,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 13:26:26,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 13:26:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:26,236 INFO L225 Difference]: With dead ends: 70 [2023-12-19 13:26:26,236 INFO L226 Difference]: Without dead ends: 68 [2023-12-19 13:26:26,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-19 13:26:26,238 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 39 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:26:26,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 199 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:26:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-19 13:26:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2023-12-19 13:26:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:26:26,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2023-12-19 13:26:26,244 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 99 [2023-12-19 13:26:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:26,245 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2023-12-19 13:26:26,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2023-12-19 13:26:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 13:26:26,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:26,247 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:26,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 13:26:26,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:26,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -2010026425, now seen corresponding path program 1 times [2023-12-19 13:26:26,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:26,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607458012] [2023-12-19 13:26:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:26,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:26,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607458012] [2023-12-19 13:26:26,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607458012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:26,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:26,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 13:26:26,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816409758] [2023-12-19 13:26:26,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:26,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 13:26:26,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:26,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 13:26:26,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:26:26,914 INFO L87 Difference]: Start difference. First operand 50 states and 72 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:27,057 INFO L93 Difference]: Finished difference Result 139 states and 196 transitions. [2023-12-19 13:26:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 13:26:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 13:26:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:27,060 INFO L225 Difference]: With dead ends: 139 [2023-12-19 13:26:27,060 INFO L226 Difference]: Without dead ends: 90 [2023-12-19 13:26:27,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-19 13:26:27,064 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 65 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:26:27,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 287 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:26:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-19 13:26:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2023-12-19 13:26:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 55 states have internal predecessors, (63), 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) [2023-12-19 13:26:27,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2023-12-19 13:26:27,077 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 99 [2023-12-19 13:26:27,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:27,077 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2023-12-19 13:26:27,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2023-12-19 13:26:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 13:26:27,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:27,079 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:27,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 13:26:27,079 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:27,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1189991879, now seen corresponding path program 1 times [2023-12-19 13:26:27,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:27,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436204736] [2023-12-19 13:26:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:27,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:27,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436204736] [2023-12-19 13:26:27,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436204736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:27,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:27,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 13:26:27,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272995207] [2023-12-19 13:26:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:27,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 13:26:27,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:27,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 13:26:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:26:27,686 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:27,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:27,946 INFO L93 Difference]: Finished difference Result 101 states and 135 transitions. [2023-12-19 13:26:27,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 13:26:27,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 13:26:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:27,948 INFO L225 Difference]: With dead ends: 101 [2023-12-19 13:26:27,948 INFO L226 Difference]: Without dead ends: 99 [2023-12-19 13:26:27,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-19 13:26:27,949 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 30 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:26:27,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 231 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:26:27,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-19 13:26:27,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2023-12-19 13:26:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 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) [2023-12-19 13:26:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 123 transitions. [2023-12-19 13:26:27,960 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 123 transitions. Word has length 99 [2023-12-19 13:26:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:27,960 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 123 transitions. [2023-12-19 13:26:27,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 123 transitions. [2023-12-19 13:26:27,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 13:26:27,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:27,961 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:27,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 13:26:27,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:27,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1329968055, now seen corresponding path program 1 times [2023-12-19 13:26:27,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:27,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840553454] [2023-12-19 13:26:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:28,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:28,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840553454] [2023-12-19 13:26:28,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840553454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:28,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:28,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 13:26:28,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350382395] [2023-12-19 13:26:28,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:28,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 13:26:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 13:26:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:26:28,433 INFO L87 Difference]: Start difference. First operand 89 states and 123 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:28,568 INFO L93 Difference]: Finished difference Result 102 states and 136 transitions. [2023-12-19 13:26:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 13:26:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 13:26:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:28,570 INFO L225 Difference]: With dead ends: 102 [2023-12-19 13:26:28,570 INFO L226 Difference]: Without dead ends: 100 [2023-12-19 13:26:28,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-12-19 13:26:28,572 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:26:28,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:26:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-19 13:26:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2023-12-19 13:26:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 57 states have internal predecessors, (65), 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) [2023-12-19 13:26:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2023-12-19 13:26:28,591 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 99 [2023-12-19 13:26:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:28,592 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2023-12-19 13:26:28,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2023-12-19 13:26:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 13:26:28,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:26:28,594 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:26:28,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 13:26:28,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:26:28,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:26:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1381377011, now seen corresponding path program 1 times [2023-12-19 13:26:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:26:28,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910425671] [2023-12-19 13:26:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:26:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:26:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:26:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:26:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:26:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:26:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:26:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:26:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:26:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:26:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:26:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:26:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:26:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:26:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:26:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:26:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:26:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:26:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:26:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:26:28,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:26:28,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910425671] [2023-12-19 13:26:28,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910425671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:26:28,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:26:28,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:26:28,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392780166] [2023-12-19 13:26:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:26:28,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:26:28,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:26:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:26:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:26:28,674 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:26:28,692 INFO L93 Difference]: Finished difference Result 160 states and 221 transitions. [2023-12-19 13:26:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:26:28,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-12-19 13:26:28,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:26:28,693 INFO L225 Difference]: With dead ends: 160 [2023-12-19 13:26:28,693 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 13:26:28,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:26:28,697 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:26:28,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:26:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 13:26:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 13:26:28,699 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) [2023-12-19 13:26:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 13:26:28,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2023-12-19 13:26:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:26:28,700 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 13:26:28,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:26:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 13:26:28,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 13:26:28,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 13:26:28,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 13:26:28,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 13:26:28,861 INFO L902 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: true [2023-12-19 13:26:28,861 INFO L902 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: true [2023-12-19 13:26:28,862 INFO L895 garLoopResultBuilder]: At program point L97-2(lines 97 103) the Hoare annotation is: (or (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) (let ((.cse2 (* (div ~var_1_8~0 256) 256))) (let ((.cse0 (= (+ .cse2 1) ~var_1_8~0)) (.cse1 (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0))) (and (or .cse0 (and .cse1 (= .cse2 ~var_1_8~0))) (or (not .cse0) (not .cse1)))))) [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L97-3(lines 97 103) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L902 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: true [2023-12-19 13:26:28,862 INFO L902 garLoopResultBuilder]: At program point L85-1(line 85) the Hoare annotation is: true [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 60) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L902 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: true [2023-12-19 13:26:28,862 INFO L902 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: true [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 61) no Hoare annotation was computed. [2023-12-19 13:26:28,862 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-12-19 13:26:28,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 13:26:28,863 INFO L899 garLoopResultBuilder]: For program point L86(lines 62 87) no Hoare annotation was computed. [2023-12-19 13:26:28,863 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-12-19 13:26:28,863 INFO L902 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: true [2023-12-19 13:26:28,863 INFO L902 garLoopResultBuilder]: At program point L82-1(line 82) the Hoare annotation is: true [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 36 61) no Hoare annotation was computed. [2023-12-19 13:26:28,864 INFO L902 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: true [2023-12-19 13:26:28,864 INFO L902 garLoopResultBuilder]: At program point L70-1(line 70) the Hoare annotation is: true [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 39) no Hoare annotation was computed. [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2023-12-19 13:26:28,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 13:26:28,865 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-12-19 13:26:28,865 INFO L902 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: true [2023-12-19 13:26:28,865 INFO L902 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: true [2023-12-19 13:26:28,865 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-12-19 13:26:28,865 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 13:26:28,865 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-19 13:26:28,865 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2023-12-19 13:26:28,865 INFO L902 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: true [2023-12-19 13:26:28,865 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-19 13:26:28,866 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 49) no Hoare annotation was computed. [2023-12-19 13:26:28,866 INFO L902 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: true [2023-12-19 13:26:28,866 INFO L902 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: true [2023-12-19 13:26:28,866 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-12-19 13:26:28,866 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 13:26:28,866 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 13:26:28,866 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 13:26:28,866 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 13:26:28,869 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 13:26:28,870 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 13:26:28,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:26:28 BoogieIcfgContainer [2023-12-19 13:26:28,879 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 13:26:28,879 INFO L158 Benchmark]: Toolchain (without parser) took 5371.60ms. Allocated memory was 299.9MB in the beginning and 371.2MB in the end (delta: 71.3MB). Free memory was 257.3MB in the beginning and 200.8MB in the end (delta: 56.5MB). Peak memory consumption was 129.3MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,879 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 227.5MB. Free memory is still 179.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:26:28,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.94ms. Allocated memory is still 299.9MB. Free memory was 257.0MB in the beginning and 244.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.72ms. Allocated memory is still 299.9MB. Free memory was 244.9MB in the beginning and 242.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,880 INFO L158 Benchmark]: Boogie Preprocessor took 42.34ms. Allocated memory is still 299.9MB. Free memory was 242.9MB in the beginning and 240.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,881 INFO L158 Benchmark]: RCFGBuilder took 307.35ms. Allocated memory is still 299.9MB. Free memory was 240.8MB in the beginning and 225.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,881 INFO L158 Benchmark]: TraceAbstraction took 4741.55ms. Allocated memory was 299.9MB in the beginning and 371.2MB in the end (delta: 71.3MB). Free memory was 224.3MB in the beginning and 200.8MB in the end (delta: 23.4MB). Peak memory consumption was 95.8MB. Max. memory is 8.0GB. [2023-12-19 13:26:28,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 227.5MB. Free memory is still 179.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.94ms. Allocated memory is still 299.9MB. Free memory was 257.0MB in the beginning and 244.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.72ms. Allocated memory is still 299.9MB. Free memory was 244.9MB in the beginning and 242.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.34ms. Allocated memory is still 299.9MB. Free memory was 242.9MB in the beginning and 240.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 307.35ms. Allocated memory is still 299.9MB. Free memory was 240.8MB in the beginning and 225.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4741.55ms. Allocated memory was 299.9MB in the beginning and 371.2MB in the end (delta: 71.3MB). Free memory was 224.3MB in the beginning and 200.8MB in the end (delta: 23.4MB). Peak memory consumption was 95.8MB. 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, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 1079 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 717 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 362 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=4, InterpolantAutomatonStates: 46, 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, 6 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 101 PreInvPairs, 130 NumberOfFragments, 70 HoareAnnotationTreeSize, 101 FormulaSimplifications, 770 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FormulaSimplificationsInter, 1179 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 2321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2880/2880 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: 97]: Loop Invariant Derived loop invariant: ((var_1_5 == ((var_1_5 / 256) * 256)) || ((((((var_1_8 / 256) * 256) + 1) == var_1_8) || ((((var_1_9 / 256) * 256) == var_1_9) && (((var_1_8 / 256) * 256) == var_1_8))) && (!(((((var_1_8 / 256) * 256) + 1) == var_1_8)) || !((((var_1_9 / 256) * 256) == var_1_9))))) RESULT: Ultimate proved your program to be correct! [2023-12-19 13:26:28,908 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...