/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:20:05,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:20:05,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:20:05,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:20:05,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:20:05,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:20:05,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:20:05,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:20:05,230 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:20:05,231 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:20:05,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:20:05,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:20:05,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:20:05,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:20:05,234 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:20:05,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:20:05,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:20:05,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:20:05,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:20:05,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:20:05,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:20:05,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:20:05,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:20:05,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:20:05,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:20:05,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:20:05,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:20:05,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:20:05,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:20:05,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:20:05,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:20:05,240 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:20:05,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:20:05,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:20:05,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:20:05,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:20:05,453 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:20:05,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label43.c [2023-12-15 19:20:06,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:20:06,812 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:20:06,813 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label43.c [2023-12-15 19:20:06,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b87b148b/c171603ccd54493b9099e3bdb218d2ca/FLAG737ed2443 [2023-12-15 19:20:06,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b87b148b/c171603ccd54493b9099e3bdb218d2ca [2023-12-15 19:20:06,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:20:06,871 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:20:06,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:20:06,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:20:06,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:20:06,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:20:06" (1/1) ... [2023-12-15 19:20:06,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b68da57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:06, skipping insertion in model container [2023-12-15 19:20:06,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:20:06" (1/1) ... [2023-12-15 19:20:07,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:20:07,233 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label43.c[3247,3260] [2023-12-15 19:20:08,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:20:08,089 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:20:08,109 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label43.c[3247,3260] [2023-12-15 19:20:08,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:20:08,620 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:20:08,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08 WrapperNode [2023-12-15 19:20:08,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:20:08,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:20:08,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:20:08,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:20:08,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:08,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,229 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2023-12-15 19:20:09,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:20:09,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:20:09,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:20:09,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:20:09,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,481 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]. [2023-12-15 19:20:09,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:20:09,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:20:09,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:20:09,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:20:09,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (1/1) ... [2023-12-15 19:20:09,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:20:09,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:09,900 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) [2023-12-15 19:20:09,918 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 [2023-12-15 19:20:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:20:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:20:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:20:09,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:20:10,039 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:20:10,040 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:20:15,802 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:20:15,868 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:20:15,868 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:20:15,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:20:15 BoogieIcfgContainer [2023-12-15 19:20:15,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:20:15,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:20:15,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:20:15,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:20:15,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:20:06" (1/3) ... [2023-12-15 19:20:15,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fad4a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:20:15, skipping insertion in model container [2023-12-15 19:20:15,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:08" (2/3) ... [2023-12-15 19:20:15,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fad4a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:20:15, skipping insertion in model container [2023-12-15 19:20:15,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:20:15" (3/3) ... [2023-12-15 19:20:15,875 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label43.c [2023-12-15 19:20:15,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:20:15,887 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:20:15,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:20:15,950 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;@29859796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:20:15,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:20:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 19:20:15,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:15,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:15,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:15,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash -196984149, now seen corresponding path program 1 times [2023-12-15 19:20:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:15,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016931364] [2023-12-15 19:20:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:16,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016931364] [2023-12-15 19:20:16,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016931364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:16,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:16,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:16,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267239953] [2023-12-15 19:20:16,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:16,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:20:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:16,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:20:16,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:20:16,140 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:16,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:16,223 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-15 19:20:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:20:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-15 19:20:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:16,239 INFO L225 Difference]: With dead ends: 3371 [2023-12-15 19:20:16,239 INFO L226 Difference]: Without dead ends: 1684 [2023-12-15 19:20:16,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:20:16,249 INFO L413 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:16,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 19:20:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-15 19:20:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-15 19:20:16,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-15 19:20:16,316 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 21 [2023-12-15 19:20:16,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:16,316 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-15 19:20:16,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-15 19:20:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 19:20:16,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:16,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:16,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 19:20:16,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:16,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1908847213, now seen corresponding path program 1 times [2023-12-15 19:20:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:16,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871173854] [2023-12-15 19:20:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:16,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:16,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871173854] [2023-12-15 19:20:16,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871173854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:16,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:16,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:16,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102247111] [2023-12-15 19:20:16,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:16,382 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:22,018 INFO L93 Difference]: Finished difference Result 4789 states and 8995 transitions. [2023-12-15 19:20:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-15 19:20:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:22,032 INFO L225 Difference]: With dead ends: 4789 [2023-12-15 19:20:22,032 INFO L226 Difference]: Without dead ends: 3106 [2023-12-15 19:20:22,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:22,035 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 1527 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:22,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1390 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-15 19:20:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2023-12-15 19:20:22,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3105. [2023-12-15 19:20:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 3104 states have (on average 1.653028350515464) internal successors, (5131), 3104 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 5131 transitions. [2023-12-15 19:20:22,094 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 5131 transitions. Word has length 21 [2023-12-15 19:20:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:22,094 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 5131 transitions. [2023-12-15 19:20:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 5131 transitions. [2023-12-15 19:20:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 19:20:22,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:22,096 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:22,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 19:20:22,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:22,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1055962599, now seen corresponding path program 1 times [2023-12-15 19:20:22,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:22,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385093721] [2023-12-15 19:20:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:22,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:22,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:22,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385093721] [2023-12-15 19:20:22,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385093721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:22,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:22,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:22,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937656564] [2023-12-15 19:20:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:22,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:22,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:22,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:22,336 INFO L87 Difference]: Start difference. First operand 3105 states and 5131 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:32,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:32,407 INFO L93 Difference]: Finished difference Result 10390 states and 16942 transitions. [2023-12-15 19:20:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:20:32,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-15 19:20:32,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:32,428 INFO L225 Difference]: With dead ends: 10390 [2023-12-15 19:20:32,429 INFO L226 Difference]: Without dead ends: 7286 [2023-12-15 19:20:32,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:20:32,434 INFO L413 NwaCegarLoop]: 1840 mSDtfsCounter, 4207 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11123 mSolverCounterSat, 1405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 12528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1405 IncrementalHoareTripleChecker+Valid, 11123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:32,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 2102 Invalid, 12528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1405 Valid, 11123 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-15 19:20:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2023-12-15 19:20:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 7235. [2023-12-15 19:20:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7235 states, 7234 states have (on average 1.52156483273431) internal successors, (11007), 7234 states have internal predecessors, (11007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7235 states to 7235 states and 11007 transitions. [2023-12-15 19:20:32,528 INFO L78 Accepts]: Start accepts. Automaton has 7235 states and 11007 transitions. Word has length 90 [2023-12-15 19:20:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:32,528 INFO L495 AbstractCegarLoop]: Abstraction has 7235 states and 11007 transitions. [2023-12-15 19:20:32,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:32,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7235 states and 11007 transitions. [2023-12-15 19:20:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-15 19:20:32,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:32,531 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:32,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 19:20:32,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:32,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1118170886, now seen corresponding path program 1 times [2023-12-15 19:20:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890732898] [2023-12-15 19:20:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:32,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:32,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:32,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890732898] [2023-12-15 19:20:32,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890732898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:32,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:32,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:32,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073119581] [2023-12-15 19:20:32,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:32,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:32,829 INFO L87 Difference]: Start difference. First operand 7235 states and 11007 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:37,865 INFO L93 Difference]: Finished difference Result 15857 states and 25895 transitions. [2023-12-15 19:20:37,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2023-12-15 19:20:37,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:37,892 INFO L225 Difference]: With dead ends: 15857 [2023-12-15 19:20:37,893 INFO L226 Difference]: Without dead ends: 9988 [2023-12-15 19:20:37,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:37,909 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 1589 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 1906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1906 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:37,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3092 Invalid, 5591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1906 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-15 19:20:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2023-12-15 19:20:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 9986. [2023-12-15 19:20:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9986 states, 9985 states have (on average 1.4262393590385578) internal successors, (14241), 9985 states have internal predecessors, (14241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9986 states to 9986 states and 14241 transitions. [2023-12-15 19:20:38,053 INFO L78 Accepts]: Start accepts. Automaton has 9986 states and 14241 transitions. Word has length 256 [2023-12-15 19:20:38,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:38,054 INFO L495 AbstractCegarLoop]: Abstraction has 9986 states and 14241 transitions. [2023-12-15 19:20:38,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9986 states and 14241 transitions. [2023-12-15 19:20:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-15 19:20:38,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:38,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:38,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 19:20:38,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:38,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:38,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1268730560, now seen corresponding path program 1 times [2023-12-15 19:20:38,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:38,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456296080] [2023-12-15 19:20:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:38,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456296080] [2023-12-15 19:20:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456296080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649220276] [2023-12-15 19:20:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:38,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:38,550 INFO L87 Difference]: Start difference. First operand 9986 states and 14241 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:44,307 INFO L93 Difference]: Finished difference Result 18637 states and 27135 transitions. [2023-12-15 19:20:44,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:20:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2023-12-15 19:20:44,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:44,328 INFO L225 Difference]: With dead ends: 18637 [2023-12-15 19:20:44,328 INFO L226 Difference]: Without dead ends: 9986 [2023-12-15 19:20:44,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:44,334 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1138 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 7314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:44,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2103 Invalid, 7322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7314 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-15 19:20:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2023-12-15 19:20:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 9986. [2023-12-15 19:20:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9986 states, 9985 states have (on average 1.4253380070105157) internal successors, (14232), 9985 states have internal predecessors, (14232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9986 states to 9986 states and 14232 transitions. [2023-12-15 19:20:44,446 INFO L78 Accepts]: Start accepts. Automaton has 9986 states and 14232 transitions. Word has length 323 [2023-12-15 19:20:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:44,446 INFO L495 AbstractCegarLoop]: Abstraction has 9986 states and 14232 transitions. [2023-12-15 19:20:44,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9986 states and 14232 transitions. [2023-12-15 19:20:44,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-12-15 19:20:44,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:44,453 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 19:20:44,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:44,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1141541753, now seen corresponding path program 1 times [2023-12-15 19:20:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:44,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253914683] [2023-12-15 19:20:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:44,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 61 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:45,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:45,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253914683] [2023-12-15 19:20:45,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253914683] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:20:45,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713158242] [2023-12-15 19:20:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:45,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:20:45,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:45,166 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) [2023-12-15 19:20:45,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:20:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:45,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:20:45,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:20:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:45,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:20:45,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713158242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:45,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:20:45,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 19:20:45,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47565967] [2023-12-15 19:20:45,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:45,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:45,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:20:45,476 INFO L87 Difference]: Start difference. First operand 9986 states and 14232 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:50,693 INFO L93 Difference]: Finished difference Result 26789 states and 39373 transitions. [2023-12-15 19:20:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2023-12-15 19:20:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:50,725 INFO L225 Difference]: With dead ends: 26789 [2023-12-15 19:20:50,725 INFO L226 Difference]: Without dead ends: 18169 [2023-12-15 19:20:50,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:20:50,736 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 2530 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 5523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 4051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:50,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 811 Invalid, 5523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 4051 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-15 19:20:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18169 states. [2023-12-15 19:20:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18169 to 18168. [2023-12-15 19:20:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18168 states, 18167 states have (on average 1.4180657235647052) internal successors, (25762), 18167 states have internal predecessors, (25762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18168 states to 18168 states and 25762 transitions. [2023-12-15 19:20:50,938 INFO L78 Accepts]: Start accepts. Automaton has 18168 states and 25762 transitions. Word has length 577 [2023-12-15 19:20:50,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:50,939 INFO L495 AbstractCegarLoop]: Abstraction has 18168 states and 25762 transitions. [2023-12-15 19:20:50,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 18168 states and 25762 transitions. [2023-12-15 19:20:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2023-12-15 19:20:50,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:50,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:50,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 19:20:51,151 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 [2023-12-15 19:20:51,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:51,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash 977642617, now seen corresponding path program 1 times [2023-12-15 19:20:51,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:51,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532504624] [2023-12-15 19:20:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-15 19:20:51,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:51,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532504624] [2023-12-15 19:20:51,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532504624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:51,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:51,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305956843] [2023-12-15 19:20:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:51,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:51,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:51,471 INFO L87 Difference]: Start difference. First operand 18168 states and 25762 transitions. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:56,299 INFO L93 Difference]: Finished difference Result 40437 states and 57707 transitions. [2023-12-15 19:20:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:56,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 584 [2023-12-15 19:20:56,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:56,337 INFO L225 Difference]: With dead ends: 40437 [2023-12-15 19:20:56,337 INFO L226 Difference]: Without dead ends: 23635 [2023-12-15 19:20:56,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:56,352 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1391 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1659 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:56,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 730 Invalid, 5585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1659 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-15 19:20:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23635 states. [2023-12-15 19:20:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23635 to 23631. [2023-12-15 19:20:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 23630 states have (on average 1.326999576809141) internal successors, (31357), 23630 states have internal predecessors, (31357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 31357 transitions. [2023-12-15 19:20:56,601 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 31357 transitions. Word has length 584 [2023-12-15 19:20:56,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:56,602 INFO L495 AbstractCegarLoop]: Abstraction has 23631 states and 31357 transitions. [2023-12-15 19:20:56,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 31357 transitions. [2023-12-15 19:20:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2023-12-15 19:20:56,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:56,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:56,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 19:20:56,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:56,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:56,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1885406550, now seen corresponding path program 1 times [2023-12-15 19:20:56,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:56,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088781349] [2023-12-15 19:20:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 39 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:58,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088781349] [2023-12-15 19:20:58,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088781349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:20:58,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453618853] [2023-12-15 19:20:58,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:58,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:20:58,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:58,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:20:58,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 19:20:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:58,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:20:58,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:20:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-15 19:20:58,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:20:58,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453618853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:58,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:20:58,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-12-15 19:20:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984049474] [2023-12-15 19:20:58,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:58,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:20:58,272 INFO L87 Difference]: Start difference. First operand 23631 states and 31357 transitions. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:03,618 INFO L93 Difference]: Finished difference Result 67756 states and 90810 transitions. [2023-12-15 19:21:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 590 [2023-12-15 19:21:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:03,677 INFO L225 Difference]: With dead ends: 67756 [2023-12-15 19:21:03,677 INFO L226 Difference]: Without dead ends: 45491 [2023-12-15 19:21:03,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:21:03,691 INFO L413 NwaCegarLoop]: 2081 mSDtfsCounter, 1643 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4896 mSolverCounterSat, 1053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 5949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1053 IncrementalHoareTripleChecker+Valid, 4896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:03,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 2182 Invalid, 5949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1053 Valid, 4896 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-15 19:21:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45491 states. [2023-12-15 19:21:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45491 to 45477. [2023-12-15 19:21:04,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45477 states, 45476 states have (on average 1.303324830679919) internal successors, (59270), 45476 states have internal predecessors, (59270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:04,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45477 states to 45477 states and 59270 transitions. [2023-12-15 19:21:04,128 INFO L78 Accepts]: Start accepts. Automaton has 45477 states and 59270 transitions. Word has length 590 [2023-12-15 19:21:04,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:04,129 INFO L495 AbstractCegarLoop]: Abstraction has 45477 states and 59270 transitions. [2023-12-15 19:21:04,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand 45477 states and 59270 transitions. [2023-12-15 19:21:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2023-12-15 19:21:04,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:04,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:04,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 19:21:04,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-15 19:21:04,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:04,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1614057602, now seen corresponding path program 1 times [2023-12-15 19:21:04,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:04,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930051246] [2023-12-15 19:21:04,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:04,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:05,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:05,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930051246] [2023-12-15 19:21:05,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930051246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:21:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:21:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009729885] [2023-12-15 19:21:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:05,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:21:05,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:21:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:21:05,088 INFO L87 Difference]: Start difference. First operand 45477 states and 59270 transitions. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-15 19:21:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:06,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:21:06,281 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 242 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:06,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 835 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 19:21:06,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:21:06,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 19:21:06,283 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (45477states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (5475 states constructed, input type IntersectNwa). [2023-12-15 19:21:06,286 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:06,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:21:06,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:21:06 BoogieIcfgContainer [2023-12-15 19:21:06,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:21:06,290 INFO L158 Benchmark]: Toolchain (without parser) took 59418.91ms. Allocated memory was 294.6MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 225.1MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 19:21:06,290 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 186.6MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:21:06,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1747.50ms. Allocated memory was 294.6MB in the beginning and 460.3MB in the end (delta: 165.7MB). Free memory was 224.5MB in the beginning and 300.7MB in the end (delta: -76.2MB). Peak memory consumption was 123.6MB. Max. memory is 8.0GB. [2023-12-15 19:21:06,291 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 [2023-12-15 19:21:06,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 607.76ms. Allocated memory is still 460.3MB. Free memory was 300.7MB in the beginning and 269.8MB in the end (delta: 30.9MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. [2023-12-15 19:21:06,291 INFO L158 Benchmark]: Boogie Preprocessor took 648.21ms. Allocated memory was 460.3MB in the beginning and 920.6MB in the end (delta: 460.3MB). Free memory was 269.8MB in the beginning and 645.8MB in the end (delta: -376.0MB). Peak memory consumption was 135.2MB. Max. memory is 8.0GB. [2023-12-15 19:21:06,291 INFO L158 Benchmark]: RCFGBuilder took 5990.04ms. Allocated memory was 920.6MB in the beginning and 1.8GB in the end (delta: 920.6MB). Free memory was 645.8MB in the beginning and 1.3GB in the end (delta: -616.0MB). Peak memory consumption was 351.3MB. Max. memory is 8.0GB. [2023-12-15 19:21:06,292 INFO L158 Benchmark]: TraceAbstraction took 50419.53ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: -69.8MB). Peak memory consumption was 856.6MB. Max. memory is 8.0GB. [2023-12-15 19:21:06,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 186.6MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1747.50ms. Allocated memory was 294.6MB in the beginning and 460.3MB in the end (delta: 165.7MB). Free memory was 224.5MB in the beginning and 300.7MB in the end (delta: -76.2MB). Peak memory consumption was 123.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 607.76ms. Allocated memory is still 460.3MB. Free memory was 300.7MB in the beginning and 269.8MB in the end (delta: 30.9MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 648.21ms. Allocated memory was 460.3MB in the beginning and 920.6MB in the end (delta: 460.3MB). Free memory was 269.8MB in the beginning and 645.8MB in the end (delta: -376.0MB). Peak memory consumption was 135.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5990.04ms. Allocated memory was 920.6MB in the beginning and 1.8GB in the end (delta: 920.6MB). Free memory was 645.8MB in the beginning and 1.3GB in the end (delta: -616.0MB). Peak memory consumption was 351.3MB. Max. memory is 8.0GB. * TraceAbstraction took 50419.53ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: -69.8MB). Peak memory consumption was 856.6MB. 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: 92]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 92). Cancelled while NwaCegarLoop was constructing difference of abstraction (45477states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (5475 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.4s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 43.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14267 SdHoareTripleChecker+Valid, 41.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14267 mSDsluCounter, 16383 SdHoareTripleChecker+Invalid, 34.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1233 mSDsCounter, 8688 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40824 IncrementalHoareTripleChecker+Invalid, 49512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8688 mSolverCounterUnsat, 15150 mSDtfsCounter, 40824 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1198 GetRequests, 1179 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45477occurred in iteration=8, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 73 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 4235 NumberOfCodeBlocks, 4235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4224 ConstructedInterpolants, 0 QuantifiedInterpolants, 30033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1386 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 743/877 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