/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-13.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 13:21:04,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 13:21:04,984 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 13:21:04,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 13:21:04,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 13:21:05,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 13:21:05,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 13:21:05,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 13:21:05,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 13:21:05,010 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 13:21:05,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 13:21:05,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 13:21:05,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 13:21:05,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 13:21:05,012 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 13:21:05,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 13:21:05,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 13:21:05,013 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 13:21:05,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 13:21:05,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 13:21:05,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 13:21:05,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 13:21:05,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 13:21:05,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 13:21:05,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 13:21:05,016 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 13:21:05,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 13:21:05,017 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 13:21:05,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 13:21:05,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 13:21:05,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 13:21:05,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 13:21:05,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:21:05,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 13:21:05,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 13:21:05,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 13:21:05,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 13:21:05,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 13:21:05,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 13:21:05,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 13:21:05,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 13:21:05,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 13:21:05,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 13:21:05,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 13:21:05,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 13:21:05,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 13:21:05,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 13:21:05,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 13:21:05,219 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 13:21:05,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-13.i [2023-12-19 13:21:06,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 13:21:06,558 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 13:21:06,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-13.i [2023-12-19 13:21:06,565 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e810f92eb/9210d36b884a4710804b0e34d120ad07/FLAGb2f1c405a [2023-12-19 13:21:06,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e810f92eb/9210d36b884a4710804b0e34d120ad07 [2023-12-19 13:21:06,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 13:21:06,578 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 13:21:06,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 13:21:06,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 13:21:06,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 13:21:06,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4718af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06, skipping insertion in model container [2023-12-19 13:21:06,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 13:21:06,745 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-13.i[915,928] [2023-12-19 13:21:06,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:21:06,790 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 13:21:06,799 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-13.i[915,928] [2023-12-19 13:21:06,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:21:06,845 INFO L206 MainTranslator]: Completed translation [2023-12-19 13:21:06,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06 WrapperNode [2023-12-19 13:21:06,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 13:21:06,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 13:21:06,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 13:21:06,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 13:21:06,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,896 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-12-19 13:21:06,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 13:21:06,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 13:21:06,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 13:21:06,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 13:21:06,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,933 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 13:21:06,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 13:21:06,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 13:21:06,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 13:21:06,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 13:21:06,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (1/1) ... [2023-12-19 13:21:06,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:21:06,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:21:07,009 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 13:21:07,033 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 13:21:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 13:21:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 13:21:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 13:21:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 13:21:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 13:21:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 13:21:07,121 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 13:21:07,123 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 13:21:07,373 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 13:21:07,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 13:21:07,441 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 13:21:07,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:21:07 BoogieIcfgContainer [2023-12-19 13:21:07,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 13:21:07,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 13:21:07,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 13:21:07,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 13:21:07,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:21:06" (1/3) ... [2023-12-19 13:21:07,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de65cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:21:07, skipping insertion in model container [2023-12-19 13:21:07,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:21:06" (2/3) ... [2023-12-19 13:21:07,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de65cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:21:07, skipping insertion in model container [2023-12-19 13:21:07,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:21:07" (3/3) ... [2023-12-19 13:21:07,450 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-13.i [2023-12-19 13:21:07,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 13:21:07,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 13:21:07,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 13:21:07,518 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;@5e852ab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 13:21:07,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 13:21:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 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 13:21:07,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 13:21:07,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:21:07,533 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] [2023-12-19 13:21:07,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:21:07,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:21:07,539 INFO L85 PathProgramCache]: Analyzing trace with hash 933376894, now seen corresponding path program 1 times [2023-12-19 13:21:07,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:21:07,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646683069] [2023-12-19 13:21:07,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:21:07,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:21:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:21:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:21:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:21:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:21:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:21:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:21:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:21:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:21:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:21:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:21:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:21:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:21:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:21:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:21:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:21:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:21:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:07,804 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 13:21:07,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:21:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646683069] [2023-12-19 13:21:07,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646683069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:21:07,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:21:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 13:21:07,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668246640] [2023-12-19 13:21:07,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:21:07,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 13:21:07,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:21:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 13:21:07,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:21:07,849 INFO L87 Difference]: Start difference. First operand has 40 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 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) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 13:21:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:21:07,908 INFO L93 Difference]: Finished difference Result 77 states and 136 transitions. [2023-12-19 13:21:07,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 13:21:07,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 96 [2023-12-19 13:21:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:21:07,916 INFO L225 Difference]: With dead ends: 77 [2023-12-19 13:21:07,916 INFO L226 Difference]: Without dead ends: 38 [2023-12-19 13:21:07,918 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 13:21:07,921 INFO L413 NwaCegarLoop]: 53 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, 53 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 13:21:07,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:21:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-19 13:21:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-19 13:21:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 13:21:07,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 56 transitions. [2023-12-19 13:21:07,954 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 56 transitions. Word has length 96 [2023-12-19 13:21:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:21:07,954 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 56 transitions. [2023-12-19 13:21:07,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 13:21:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2023-12-19 13:21:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 13:21:07,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:21:07,959 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] [2023-12-19 13:21:07,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 13:21:07,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:21:07,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:21:07,960 INFO L85 PathProgramCache]: Analyzing trace with hash -369667202, now seen corresponding path program 1 times [2023-12-19 13:21:07,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:21:07,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789995667] [2023-12-19 13:21:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:21:07,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:21:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:21:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:21:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:21:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:21:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:21:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:21:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:21:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:21:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:21:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:21:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:21:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:21:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:21:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:21:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:21:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:21:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,143 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 13:21:08,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:21:08,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789995667] [2023-12-19 13:21:08,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789995667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:21:08,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:21:08,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:21:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688477335] [2023-12-19 13:21:08,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:21:08,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:21:08,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:21:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:21:08,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:21:08,147 INFO L87 Difference]: Start difference. First operand 38 states and 56 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 13:21:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:21:08,181 INFO L93 Difference]: Finished difference Result 104 states and 155 transitions. [2023-12-19 13:21:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:21:08,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 96 [2023-12-19 13:21:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:21:08,184 INFO L225 Difference]: With dead ends: 104 [2023-12-19 13:21:08,184 INFO L226 Difference]: Without dead ends: 67 [2023-12-19 13:21:08,184 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 13:21:08,186 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 51 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:21:08,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:21:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-19 13:21:08,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 38. [2023-12-19 13:21:08,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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 13:21:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2023-12-19 13:21:08,196 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 96 [2023-12-19 13:21:08,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:21:08,197 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2023-12-19 13:21:08,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 13:21:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2023-12-19 13:21:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 13:21:08,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:21:08,199 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] [2023-12-19 13:21:08,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 13:21:08,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:21:08,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:21:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash -367820160, now seen corresponding path program 1 times [2023-12-19 13:21:08,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:21:08,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968859525] [2023-12-19 13:21:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:21:08,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:21:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:21:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:21:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:21:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:21:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:21:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:21:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:21:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:21:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:21:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:21:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:21:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:21:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:21:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:21:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:21:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:21:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:08,467 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 13:21:08,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:21:08,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968859525] [2023-12-19 13:21:08,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968859525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:21:08,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:21:08,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:21:08,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674369733] [2023-12-19 13:21:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:21:08,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:21:08,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:21:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:21:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:21:08,469 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 13:21:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:21:08,486 INFO L93 Difference]: Finished difference Result 75 states and 107 transitions. [2023-12-19 13:21:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:21:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 96 [2023-12-19 13:21:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:21:08,488 INFO L225 Difference]: With dead ends: 75 [2023-12-19 13:21:08,488 INFO L226 Difference]: Without dead ends: 38 [2023-12-19 13:21:08,489 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 13:21:08,490 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:21:08,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:21:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-19 13:21:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-19 13:21:08,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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 13:21:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2023-12-19 13:21:08,499 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 96 [2023-12-19 13:21:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:21:08,500 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2023-12-19 13:21:08,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 13:21:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-12-19 13:21:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 13:21:08,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:21:08,502 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] [2023-12-19 13:21:08,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 13:21:08,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:21:08,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:21:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash -367760578, now seen corresponding path program 1 times [2023-12-19 13:21:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:21:08,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283571629] [2023-12-19 13:21:08,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:21:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:21:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 13:21:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 13:21:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 13:21:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 13:21:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 13:21:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 13:21:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 13:21:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 13:21:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 13:21:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 13:21:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 13:21:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 13:21:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 13:21:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 13:21:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 13:21:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 13:21:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:21:13,825 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 13:21:13,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:21:13,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283571629] [2023-12-19 13:21:13,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283571629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:21:13,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:21:13,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 13:21:13,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988020042] [2023-12-19 13:21:13,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:21:13,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 13:21:13,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:21:13,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 13:21:13,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 13:21:13,828 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 13:21:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:21:13,960 INFO L93 Difference]: Finished difference Result 62 states and 85 transitions. [2023-12-19 13:21:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 13:21:13,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 96 [2023-12-19 13:21:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:21:13,962 INFO L225 Difference]: With dead ends: 62 [2023-12-19 13:21:13,962 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 13:21:13,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:21:13,963 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:21:13,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 196 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:21:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 13:21:13,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 13:21:13,965 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 13:21:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 13:21:13,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2023-12-19 13:21:13,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:21:13,965 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 13:21:13,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 13:21:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 13:21:13,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 13:21:13,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 13:21:13,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 13:21:13,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 13:21:14,178 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-12-19 13:21:14,178 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,179 INFO L895 garLoopResultBuilder]: At program point L60-1(line 60) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,179 INFO L895 garLoopResultBuilder]: At program point L93-2(lines 93 99) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,179 INFO L899 garLoopResultBuilder]: For program point L93-3(lines 93 99) no Hoare annotation was computed. [2023-12-19 13:21:14,180 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 13:21:14,180 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 13:21:14,180 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,180 INFO L895 garLoopResultBuilder]: At program point L81-1(line 81) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,181 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 13:21:14,182 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 40 57) no Hoare annotation was computed. [2023-12-19 13:21:14,182 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-19 13:21:14,183 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,183 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,183 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-19 13:21:14,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 13:21:14,183 INFO L899 garLoopResultBuilder]: For program point L82(lines 58 83) no Hoare annotation was computed. [2023-12-19 13:21:14,183 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,183 INFO L895 garLoopResultBuilder]: At program point L78-1(line 78) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,183 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-12-19 13:21:14,184 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,184 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 13:21:14,184 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2023-12-19 13:21:14,185 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,185 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 13:21:14,185 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-12-19 13:21:14,186 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,186 INFO L895 garLoopResultBuilder]: At program point L63-1(line 63) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,186 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 51 53) no Hoare annotation was computed. [2023-12-19 13:21:14,187 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-12-19 13:21:14,187 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2023-12-19 13:21:14,187 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 40 57) no Hoare annotation was computed. [2023-12-19 13:21:14,188 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,189 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (and (<= 25 ~var_1_1~0) (<= (div ~var_1_1~0 65536) 0)) [2023-12-19 13:21:14,189 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 13:21:14,189 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 13:21:14,190 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 13:21:14,190 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 13:21:14,193 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-19 13:21:14,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 13:21:14,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:21:14 BoogieIcfgContainer [2023-12-19 13:21:14,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 13:21:14,210 INFO L158 Benchmark]: Toolchain (without parser) took 7629.96ms. Allocated memory was 200.3MB in the beginning and 532.7MB in the end (delta: 332.4MB). Free memory was 158.7MB in the beginning and 277.1MB in the end (delta: -118.4MB). Peak memory consumption was 215.5MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,210 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:21:14,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 200.3MB. Free memory was 158.3MB in the beginning and 145.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.38ms. Allocated memory is still 200.3MB. Free memory was 145.2MB in the beginning and 141.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,212 INFO L158 Benchmark]: Boogie Preprocessor took 79.00ms. Allocated memory is still 200.3MB. Free memory was 141.2MB in the beginning and 134.2MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,212 INFO L158 Benchmark]: RCFGBuilder took 465.44ms. Allocated memory is still 200.3MB. Free memory was 134.2MB in the beginning and 172.3MB in the end (delta: -38.0MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,213 INFO L158 Benchmark]: TraceAbstraction took 6762.54ms. Allocated memory was 200.3MB in the beginning and 532.7MB in the end (delta: 332.4MB). Free memory was 171.8MB in the beginning and 277.1MB in the end (delta: -105.4MB). Peak memory consumption was 227.0MB. Max. memory is 8.0GB. [2023-12-19 13:21:14,214 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.73ms. Allocated memory is still 200.3MB. Free memory was 158.3MB in the beginning and 145.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.38ms. Allocated memory is still 200.3MB. Free memory was 145.2MB in the beginning and 141.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.00ms. Allocated memory is still 200.3MB. Free memory was 141.2MB in the beginning and 134.2MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 465.44ms. Allocated memory is still 200.3MB. Free memory was 134.2MB in the beginning and 172.3MB in the end (delta: -38.0MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. * TraceAbstraction took 6762.54ms. Allocated memory was 200.3MB in the beginning and 532.7MB in the end (delta: 332.4MB). Free memory was 171.8MB in the beginning and 277.1MB in the end (delta: -105.4MB). Peak memory consumption was 227.0MB. 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, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 432 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 268 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 29 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 91 PreInvPairs, 119 NumberOfFragments, 154 HoareAnnotationTreeSize, 91 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FormulaSimplificationsInter, 762 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1920/1920 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: 93]: Loop Invariant Derived loop invariant: ((25 <= var_1_1) && ((var_1_1 / 65536) <= 0)) RESULT: Ultimate proved your program to be correct! [2023-12-19 13:21:14,243 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...