/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:37:01,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:37:01,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:37:01,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:37:01,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:37:01,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:37:01,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:37:01,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:37:01,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:37:01,694 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:37:01,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:37:01,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:37:01,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:37:01,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:37:01,696 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:37:01,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:37:01,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:37:01,697 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:37:01,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:37:01,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:37:01,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:37:01,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:37:01,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:37:01,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:37:01,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:37:01,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:37:01,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:37:01,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:37:01,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:37:01,701 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:37:01,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:37:01,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:37:01,702 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:37:01,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:37:01,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:37:01,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:37:01,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:37:01,938 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:37:01,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-16 03:37:02,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:37:03,098 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:37:03,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-16 03:37:03,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1595504c2/73c7a09526b04833be21faa1a318cc89/FLAG21c0ea73f [2023-12-16 03:37:03,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1595504c2/73c7a09526b04833be21faa1a318cc89 [2023-12-16 03:37:03,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:37:03,121 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:37:03,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:37:03,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:37:03,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:37:03,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539012bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03, skipping insertion in model container [2023-12-16 03:37:03,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:37:03,266 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929] [2023-12-16 03:37:03,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:37:03,319 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:37:03,329 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929] [2023-12-16 03:37:03,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:37:03,351 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:37:03,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03 WrapperNode [2023-12-16 03:37:03,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:37:03,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:37:03,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:37:03,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:37:03,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,398 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-12-16 03:37:03,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:37:03,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:37:03,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:37:03,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:37:03,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,432 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 03:37:03,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:37:03,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:37:03,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:37:03,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:37:03,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (1/1) ... [2023-12-16 03:37:03,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:37:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:03,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 03:37:03,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 03:37:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:37:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:37:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:37:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:37:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:37:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:37:03,616 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:37:03,618 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:37:03,844 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:37:03,877 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:37:03,877 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:37:03,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:03 BoogieIcfgContainer [2023-12-16 03:37:03,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:37:03,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:37:03,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:37:03,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:37:03,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:37:03" (1/3) ... [2023-12-16 03:37:03,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a875e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:03, skipping insertion in model container [2023-12-16 03:37:03,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:03" (2/3) ... [2023-12-16 03:37:03,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a875e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:03, skipping insertion in model container [2023-12-16 03:37:03,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:03" (3/3) ... [2023-12-16 03:37:03,888 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-16 03:37:03,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:37:03,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:37:03,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:37:03,945 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;@116cc9d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:37:03,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:37:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 03:37:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 03:37:03,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:03,958 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:03,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:03,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1898360507, now seen corresponding path program 1 times [2023-12-16 03:37:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:03,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319133343] [2023-12-16 03:37:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:03,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 03:37:04,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:04,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319133343] [2023-12-16 03:37:04,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319133343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:04,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:04,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:37:04,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951014334] [2023-12-16 03:37:04,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:04,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:37:04,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:37:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:37:04,321 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 03:37:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:04,359 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2023-12-16 03:37:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:37:04,363 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-12-16 03:37:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:04,368 INFO L225 Difference]: With dead ends: 93 [2023-12-16 03:37:04,368 INFO L226 Difference]: Without dead ends: 46 [2023-12-16 03:37:04,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:37:04,374 INFO L413 NwaCegarLoop]: 66 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, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:04,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:37:04,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-16 03:37:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-16 03:37:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 03:37:04,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-12-16 03:37:04,413 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 109 [2023-12-16 03:37:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:04,414 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-12-16 03:37:04,414 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 03:37:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-12-16 03:37:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 03:37:04,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:04,417 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:04,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 03:37:04,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:04,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2022651909, now seen corresponding path program 1 times [2023-12-16 03:37:04,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:04,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193405447] [2023-12-16 03:37:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:04,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 03:37:06,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:06,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193405447] [2023-12-16 03:37:06,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193405447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:06,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:06,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 03:37:06,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300670702] [2023-12-16 03:37:06,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:06,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:37:06,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:37:06,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:37:06,045 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:06,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:06,210 INFO L93 Difference]: Finished difference Result 110 states and 163 transitions. [2023-12-16 03:37:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:37:06,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-12-16 03:37:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:06,213 INFO L225 Difference]: With dead ends: 110 [2023-12-16 03:37:06,213 INFO L226 Difference]: Without dead ends: 65 [2023-12-16 03:37:06,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:37:06,216 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 19 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:06,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 233 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:37:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-16 03:37:06,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2023-12-16 03:37:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 03:37:06,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2023-12-16 03:37:06,233 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 109 [2023-12-16 03:37:06,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:06,235 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2023-12-16 03:37:06,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2023-12-16 03:37:06,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 03:37:06,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:06,242 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:06,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 03:37:06,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:06,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:06,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1462968761, now seen corresponding path program 1 times [2023-12-16 03:37:06,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:06,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489024532] [2023-12-16 03:37:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:06,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 03:37:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489024532] [2023-12-16 03:37:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489024532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:37:06,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224907541] [2023-12-16 03:37:06,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:06,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:37:06,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:06,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:37:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:37:06,417 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:06,497 INFO L93 Difference]: Finished difference Result 162 states and 237 transitions. [2023-12-16 03:37:06,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:37:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-12-16 03:37:06,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:06,501 INFO L225 Difference]: With dead ends: 162 [2023-12-16 03:37:06,501 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 03:37:06,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:37:06,505 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 55 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:06,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:37:06,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 03:37:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2023-12-16 03:37:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 03:37:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 148 transitions. [2023-12-16 03:37:06,524 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 148 transitions. Word has length 109 [2023-12-16 03:37:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:06,526 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 148 transitions. [2023-12-16 03:37:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 148 transitions. [2023-12-16 03:37:06,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 03:37:06,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:06,528 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:06,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 03:37:06,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:06,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1417779193, now seen corresponding path program 1 times [2023-12-16 03:37:06,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:06,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475343451] [2023-12-16 03:37:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:06,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 03:37:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475343451] [2023-12-16 03:37:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475343451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:07,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:07,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 03:37:07,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172400246] [2023-12-16 03:37:07,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:07,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:37:07,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:37:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:37:07,739 INFO L87 Difference]: Start difference. First operand 100 states and 148 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:07,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:07,843 INFO L93 Difference]: Finished difference Result 205 states and 302 transitions. [2023-12-16 03:37:07,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:37:07,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 110 [2023-12-16 03:37:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:07,844 INFO L225 Difference]: With dead ends: 205 [2023-12-16 03:37:07,844 INFO L226 Difference]: Without dead ends: 106 [2023-12-16 03:37:07,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:37:07,845 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 9 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:07,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 217 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:37:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-16 03:37:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2023-12-16 03:37:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 03:37:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 140 transitions. [2023-12-16 03:37:07,852 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 140 transitions. Word has length 110 [2023-12-16 03:37:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:07,852 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 140 transitions. [2023-12-16 03:37:07,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2023-12-16 03:37:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-16 03:37:07,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:07,854 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:07,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 03:37:07,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:07,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:07,855 INFO L85 PathProgramCache]: Analyzing trace with hash -914970014, now seen corresponding path program 1 times [2023-12-16 03:37:07,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:07,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026653263] [2023-12-16 03:37:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:07,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 03:37:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 03:37:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 03:37:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 03:37:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 03:37:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 03:37:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 03:37:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 03:37:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-16 03:37:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-16 03:37:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-16 03:37:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 03:37:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-16 03:37:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 03:37:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 03:37:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-16 03:37:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-16 03:37:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-16 03:37:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2555 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2023-12-16 03:37:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026653263] [2023-12-16 03:37:09,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026653263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:37:09,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:37:09,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 03:37:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899109335] [2023-12-16 03:37:09,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:37:09,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:37:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:37:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:37:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:37:09,292 INFO L87 Difference]: Start difference. First operand 95 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:37:09,418 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2023-12-16 03:37:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:37:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 219 [2023-12-16 03:37:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:37:09,419 INFO L225 Difference]: With dead ends: 156 [2023-12-16 03:37:09,420 INFO L226 Difference]: Without dead ends: 103 [2023-12-16 03:37:09,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:37:09,420 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 19 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:37:09,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 238 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:37:09,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-16 03:37:09,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2023-12-16 03:37:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 03:37:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 138 transitions. [2023-12-16 03:37:09,427 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 138 transitions. Word has length 219 [2023-12-16 03:37:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:37:09,427 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 138 transitions. [2023-12-16 03:37:09,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 03:37:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 138 transitions. [2023-12-16 03:37:09,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-16 03:37:09,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:37:09,429 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:37:09,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 03:37:09,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:37:09,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:37:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2005221706, now seen corresponding path program 1 times [2023-12-16 03:37:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:37:09,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260842611] [2023-12-16 03:37:09,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:09,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:37:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 03:37:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 03:37:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 03:37:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 03:37:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 03:37:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 03:37:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 03:37:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 03:37:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 03:37:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 03:37:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 03:37:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 03:37:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 03:37:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 03:37:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 03:37:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 03:37:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 03:37:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 03:37:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 03:37:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 03:37:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 03:37:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 03:37:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 03:37:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 03:37:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 03:37:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 03:37:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-16 03:37:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-16 03:37:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-16 03:37:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-16 03:37:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-16 03:37:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 03:37:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 03:37:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-16 03:37:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-16 03:37:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-16 03:37:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-16 03:37:10,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:37:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260842611] [2023-12-16 03:37:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260842611] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 03:37:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713547698] [2023-12-16 03:37:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:37:10,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:37:10,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:37:10,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:37:10,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:37:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:37:10,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 03:37:10,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 03:38:17,333 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:38:17,343 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:38:17,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:38:17,353 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:38:17,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-16 03:38:17,550 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 221 with TraceHistMax 36,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-10-2-4-3-2-2-2-2-2-2-3-2-2-2-3-2-2-2-3-2-2-2-2-2-3-2-4-3-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 context. [2023-12-16 03:38:17,554 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 03:38:17,557 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:38:17,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:38:17 BoogieIcfgContainer [2023-12-16 03:38:17,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:38:17,560 INFO L158 Benchmark]: Toolchain (without parser) took 74439.36ms. Allocated memory was 200.3MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 156.9MB in the beginning and 651.9MB in the end (delta: -495.0MB). Peak memory consumption was 680.2MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,560 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:38:17,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.17ms. Allocated memory is still 200.3MB. Free memory was 156.8MB in the beginning and 143.9MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.27ms. Allocated memory is still 200.3MB. Free memory was 143.9MB in the beginning and 141.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,561 INFO L158 Benchmark]: Boogie Preprocessor took 51.06ms. Allocated memory is still 200.3MB. Free memory was 141.2MB in the beginning and 137.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,561 INFO L158 Benchmark]: RCFGBuilder took 426.85ms. Allocated memory is still 200.3MB. Free memory was 137.4MB in the beginning and 118.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,562 INFO L158 Benchmark]: TraceAbstraction took 73680.48ms. Allocated memory was 200.3MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 117.7MB in the beginning and 651.9MB in the end (delta: -534.2MB). Peak memory consumption was 640.4MB. Max. memory is 8.0GB. [2023-12-16 03:38:17,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.17ms. Allocated memory is still 200.3MB. Free memory was 156.8MB in the beginning and 143.9MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.27ms. Allocated memory is still 200.3MB. Free memory was 143.9MB in the beginning and 141.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.06ms. Allocated memory is still 200.3MB. Free memory was 141.2MB in the beginning and 137.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 426.85ms. Allocated memory is still 200.3MB. Free memory was 137.4MB in the beginning and 118.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 73680.48ms. Allocated memory was 200.3MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 117.7MB in the beginning and 651.9MB in the end (delta: -534.2MB). Peak memory consumption was 640.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 221 with TraceHistMax 36,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-10-2-4-3-2-2-2-2-2-2-3-2-2-2-3-2-2-2-3-2-2-2-2-2-3-2-4-3-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.6s, OverallIterations: 6, TraceHistogramMax: 36, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 943 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 623 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 320 mSDtfsCounter, 241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 1739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5003/5003 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown