/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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:19:48,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:19:48,704 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 19:19:48,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:19:48,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:19:48,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:19:48,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:19:48,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:19:48,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:19:48,736 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:19:48,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:19:48,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:19:48,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:19:48,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:19:48,738 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:19:48,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:19:48,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:19:48,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:19:48,740 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:19:48,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:19:48,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:19:48,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:19:48,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:19:48,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:19:48,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:19:48,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:19:48,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:19:48,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:19:48,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:19:48,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:19:48,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:19:48,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:19:48,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:19:48,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:19:48,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:19:48,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:19:48,946 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:19:48,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label41.c [2023-12-15 19:19:49,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:19:50,358 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:19:50,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label41.c [2023-12-15 19:19:50,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b6f8e4e2/dd8407fca5dd46d0a845b2f0f74fb88c/FLAG7c93eb85e [2023-12-15 19:19:50,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b6f8e4e2/dd8407fca5dd46d0a845b2f0f74fb88c [2023-12-15 19:19:50,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:19:50,412 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:19:50,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:19:50,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:19:50,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:19:50,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:19:50" (1/1) ... [2023-12-15 19:19:50,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acfbd9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:50, skipping insertion in model container [2023-12-15 19:19:50,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:19:50" (1/1) ... [2023-12-15 19:19:50,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:19:50,741 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_label41.c[1319,1332] [2023-12-15 19:19:51,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:19:51,639 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:19:51,649 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_label41.c[1319,1332] [2023-12-15 19:19:52,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:19:52,245 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:19:52,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52 WrapperNode [2023-12-15 19:19:52,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:19:52,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:19:52,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:19:52,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:19:52,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:52,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:52,975 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2023-12-15 19:19:52,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:19:52,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:19:52,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:19:52,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:19:52,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:52,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,326 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 19:19:53,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:19:53,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:19:53,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:19:53,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:19:53,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (1/1) ... [2023-12-15 19:19:53,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:19:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:19:53,884 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 19:19:53,904 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 19:19:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:19:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:19:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:19:53,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:19:53,959 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:19:53,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:19:59,763 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:19:59,817 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:19:59,817 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:19:59,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:19:59 BoogieIcfgContainer [2023-12-15 19:19:59,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:19:59,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:19:59,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:19:59,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:19:59,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:19:50" (1/3) ... [2023-12-15 19:19:59,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709975c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:19:59, skipping insertion in model container [2023-12-15 19:19:59,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:19:52" (2/3) ... [2023-12-15 19:19:59,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709975c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:19:59, skipping insertion in model container [2023-12-15 19:19:59,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:19:59" (3/3) ... [2023-12-15 19:19:59,822 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label41.c [2023-12-15 19:19:59,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:19:59,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:19:59,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:19:59,885 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;@727fa2b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:19:59,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:19:59,892 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 19:19:59,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-15 19:19:59,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:19:59,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-15 19:19:59,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:19:59,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:19:59,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1072129965, now seen corresponding path program 1 times [2023-12-15 19:19:59,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:19:59,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865381603] [2023-12-15 19:19:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:19:59,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:19:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:00,027 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 19:20:00,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865381603] [2023-12-15 19:20:00,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865381603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:00,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:00,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:00,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858156142] [2023-12-15 19:20:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:00,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:00,066 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 19:20:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:05,723 INFO L93 Difference]: Finished difference Result 4795 states and 9189 transitions. [2023-12-15 19:20:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:05,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-12-15 19:20:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:05,750 INFO L225 Difference]: With dead ends: 4795 [2023-12-15 19:20:05,750 INFO L226 Difference]: Without dead ends: 3106 [2023-12-15 19:20:05,760 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 19:20:05,762 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 1545 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4581 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 5631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 4581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:05,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 1392 Invalid, 5631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 4581 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-15 19:20:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2023-12-15 19:20:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3105. [2023-12-15 19:20:05,853 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 19:20:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 5131 transitions. [2023-12-15 19:20:05,861 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 5131 transitions. Word has length 5 [2023-12-15 19:20:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:05,861 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 5131 transitions. [2023-12-15 19:20:05,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 19:20:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 5131 transitions. [2023-12-15 19:20:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 19:20:05,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:05,863 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 19:20:05,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 19:20:05,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:05,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash 589701081, now seen corresponding path program 1 times [2023-12-15 19:20:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617164788] [2023-12-15 19:20:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:05,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:06,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:06,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617164788] [2023-12-15 19:20:06,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617164788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:06,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:06,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:06,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189697810] [2023-12-15 19:20:06,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:06,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:06,272 INFO L87 Difference]: Start difference. First operand 3105 states and 5131 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 19:20:16,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:16,550 INFO L93 Difference]: Finished difference Result 10390 states and 16942 transitions. [2023-12-15 19:20:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:20:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2023-12-15 19:20:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:16,575 INFO L225 Difference]: With dead ends: 10390 [2023-12-15 19:20:16,575 INFO L226 Difference]: Without dead ends: 7286 [2023-12-15 19:20:16,579 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 19:20:16,580 INFO L413 NwaCegarLoop]: 1840 mSDtfsCounter, 4207 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11123 mSolverCounterSat, 1405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s 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, 10.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:16,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 2102 Invalid, 12528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1405 Valid, 11123 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-15 19:20:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2023-12-15 19:20:16,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 7235. [2023-12-15 19:20:16,693 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 19:20:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7235 states to 7235 states and 11007 transitions. [2023-12-15 19:20:16,708 INFO L78 Accepts]: Start accepts. Automaton has 7235 states and 11007 transitions. Word has length 74 [2023-12-15 19:20:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:16,708 INFO L495 AbstractCegarLoop]: Abstraction has 7235 states and 11007 transitions. [2023-12-15 19:20:16,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 19:20:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 7235 states and 11007 transitions. [2023-12-15 19:20:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-15 19:20:16,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:16,719 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 19:20:16,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 19:20:16,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:16,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:16,720 INFO L85 PathProgramCache]: Analyzing trace with hash -113407814, now seen corresponding path program 1 times [2023-12-15 19:20:16,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:16,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285273861] [2023-12-15 19:20:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:16,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:17,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285273861] [2023-12-15 19:20:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285273861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67909373] [2023-12-15 19:20:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:17,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:17,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:17,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:17,078 INFO L87 Difference]: Start difference. First operand 7235 states and 11007 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 19:20:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:22,186 INFO L93 Difference]: Finished difference Result 15857 states and 25895 transitions. [2023-12-15 19:20:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 240 [2023-12-15 19:20:22,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:22,227 INFO L225 Difference]: With dead ends: 15857 [2023-12-15 19:20:22,227 INFO L226 Difference]: Without dead ends: 9988 [2023-12-15 19:20:22,236 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 19:20:22,238 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 1605 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 1906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 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, 5.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:22,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 3092 Invalid, 5591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1906 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-15 19:20:22,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2023-12-15 19:20:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 9986. [2023-12-15 19:20:22,363 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 19:20:22,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9986 states to 9986 states and 14241 transitions. [2023-12-15 19:20:22,378 INFO L78 Accepts]: Start accepts. Automaton has 9986 states and 14241 transitions. Word has length 240 [2023-12-15 19:20:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:22,382 INFO L495 AbstractCegarLoop]: Abstraction has 9986 states and 14241 transitions. [2023-12-15 19:20:22,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 19:20:22,385 INFO L276 IsEmpty]: Start isEmpty. Operand 9986 states and 14241 transitions. [2023-12-15 19:20:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-15 19:20:22,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:22,389 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:22,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 19:20:22,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:22,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:22,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1226466816, now seen corresponding path program 1 times [2023-12-15 19:20:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227407501] [2023-12-15 19:20:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:22,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227407501] [2023-12-15 19:20:22,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227407501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:22,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:22,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:22,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623024599] [2023-12-15 19:20:22,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:22,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:22,865 INFO L87 Difference]: Start difference. First operand 9986 states and 14241 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 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 19:20:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:28,999 INFO L93 Difference]: Finished difference Result 18637 states and 27135 transitions. [2023-12-15 19:20:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:20:29,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 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 307 [2023-12-15 19:20:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:29,023 INFO L225 Difference]: With dead ends: 18637 [2023-12-15 19:20:29,023 INFO L226 Difference]: Without dead ends: 9986 [2023-12-15 19:20:29,030 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 19:20:29,031 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1138 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 7314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s 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, 6.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:29,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2103 Invalid, 7322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7314 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-15 19:20:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2023-12-15 19:20:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 9986. [2023-12-15 19:20:29,140 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 19:20:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9986 states to 9986 states and 14232 transitions. [2023-12-15 19:20:29,152 INFO L78 Accepts]: Start accepts. Automaton has 9986 states and 14232 transitions. Word has length 307 [2023-12-15 19:20:29,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:29,152 INFO L495 AbstractCegarLoop]: Abstraction has 9986 states and 14232 transitions. [2023-12-15 19:20:29,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 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 19:20:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 9986 states and 14232 transitions. [2023-12-15 19:20:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-12-15 19:20:29,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:29,159 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:29,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 19:20:29,159 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:29,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1289585209, now seen corresponding path program 1 times [2023-12-15 19:20:29,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:29,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58721336] [2023-12-15 19:20:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:29,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 29 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58721336] [2023-12-15 19:20:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58721336] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:20:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112905717] [2023-12-15 19:20:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:29,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:20:29,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:29,911 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 19:20:29,913 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 19:20:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:30,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:20:30,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:20:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:30,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:20:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112905717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:30,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:20:30,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 19:20:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590791797] [2023-12-15 19:20:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:30,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:30,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:20:30,222 INFO L87 Difference]: Start difference. First operand 9986 states and 14232 transitions. Second operand has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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 19:20:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:35,602 INFO L93 Difference]: Finished difference Result 26789 states and 39373 transitions. [2023-12-15 19:20:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:35,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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 561 [2023-12-15 19:20:35,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:35,650 INFO L225 Difference]: With dead ends: 26789 [2023-12-15 19:20:35,650 INFO L226 Difference]: Without dead ends: 18169 [2023-12-15 19:20:35,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 560 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 19:20:35,661 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 2530 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 5.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:35,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 811 Invalid, 5523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 4051 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-15 19:20:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18169 states. [2023-12-15 19:20:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18169 to 18168. [2023-12-15 19:20:35,838 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 19:20:35,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18168 states to 18168 states and 25762 transitions. [2023-12-15 19:20:35,858 INFO L78 Accepts]: Start accepts. Automaton has 18168 states and 25762 transitions. Word has length 561 [2023-12-15 19:20:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:35,859 INFO L495 AbstractCegarLoop]: Abstraction has 18168 states and 25762 transitions. [2023-12-15 19:20:35,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 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 19:20:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 18168 states and 25762 transitions. [2023-12-15 19:20:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-15 19:20:35,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:35,866 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:35,873 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 19:20:36,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:20:36,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:36,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:36,072 INFO L85 PathProgramCache]: Analyzing trace with hash 970111289, now seen corresponding path program 1 times [2023-12-15 19:20:36,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:36,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332988207] [2023-12-15 19:20:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:36,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-15 19:20:36,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:36,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332988207] [2023-12-15 19:20:36,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332988207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:36,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:36,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:36,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133167780] [2023-12-15 19:20:36,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:36,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:36,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:36,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:36,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:20:36,381 INFO L87 Difference]: Start difference. First operand 18168 states and 25762 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 2 states have internal predecessors, (485), 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 19:20:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:41,088 INFO L93 Difference]: Finished difference Result 40437 states and 57707 transitions. [2023-12-15 19:20:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:41,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 2 states have internal predecessors, (485), 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 568 [2023-12-15 19:20:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:41,124 INFO L225 Difference]: With dead ends: 40437 [2023-12-15 19:20:41,124 INFO L226 Difference]: Without dead ends: 23635 [2023-12-15 19:20:41,142 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 19:20:41,143 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1391 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:41,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 730 Invalid, 5585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1659 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-15 19:20:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23635 states. [2023-12-15 19:20:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23635 to 23631. [2023-12-15 19:20:41,376 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 19:20:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 31357 transitions. [2023-12-15 19:20:41,401 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 31357 transitions. Word has length 568 [2023-12-15 19:20:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:41,402 INFO L495 AbstractCegarLoop]: Abstraction has 23631 states and 31357 transitions. [2023-12-15 19:20:41,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 2 states have internal predecessors, (485), 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 19:20:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 31357 transitions. [2023-12-15 19:20:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2023-12-15 19:20:41,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:41,407 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:41,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 19:20:41,407 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:41,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1502473878, now seen corresponding path program 1 times [2023-12-15 19:20:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309449343] [2023-12-15 19:20:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 7 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:42,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:42,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309449343] [2023-12-15 19:20:42,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309449343] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:20:42,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898915545] [2023-12-15 19:20:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:42,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:20:42,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:42,830 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 19:20:42,832 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 19:20:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:43,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:20:43,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:20:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-15 19:20:43,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:20:43,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898915545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:43,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:20:43,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-12-15 19:20:43,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304625837] [2023-12-15 19:20:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:43,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:20:43,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:43,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:20:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:20:43,041 INFO L87 Difference]: Start difference. First operand 23631 states and 31357 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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 19:20:48,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:48,467 INFO L93 Difference]: Finished difference Result 67756 states and 90810 transitions. [2023-12-15 19:20:48,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:20:48,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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 574 [2023-12-15 19:20:48,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:48,526 INFO L225 Difference]: With dead ends: 67756 [2023-12-15 19:20:48,526 INFO L226 Difference]: Without dead ends: 45491 [2023-12-15 19:20:48,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 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 19:20:48,550 INFO L413 NwaCegarLoop]: 2081 mSDtfsCounter, 1659 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4896 mSolverCounterSat, 1053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 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, 5.1s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:48,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 2182 Invalid, 5949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1053 Valid, 4896 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] Received shutdown request... [2023-12-15 19:20:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45491 states. [2023-12-15 19:20:48,588 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:20:48,590 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:20:48,594 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 19:20:48,609 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 19:20:48,792 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,SelfDestructingSolverStorable6 [2023-12-15 19:20:48,792 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 19:20:48,795 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:48,797 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:20:48,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:20:48 BoogieIcfgContainer [2023-12-15 19:20:48,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:20:48,799 INFO L158 Benchmark]: Toolchain (without parser) took 58387.59ms. Allocated memory was 188.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 113.3MB in the beginning and 669.8MB in the end (delta: -556.5MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 19:20:48,799 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:20:48,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1832.56ms. Allocated memory was 188.7MB in the beginning and 240.1MB in the end (delta: 51.4MB). Free memory was 113.3MB in the beginning and 133.5MB in the end (delta: -20.2MB). Peak memory consumption was 123.1MB. Max. memory is 8.0GB. [2023-12-15 19:20:48,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 728.21ms. Allocated memory was 240.1MB in the beginning and 402.7MB in the end (delta: 162.5MB). Free memory was 133.5MB in the beginning and 225.2MB in the end (delta: -91.7MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. [2023-12-15 19:20:48,800 INFO L158 Benchmark]: Boogie Preprocessor took 881.88ms. Allocated memory was 402.7MB in the beginning and 659.6MB in the end (delta: 256.9MB). Free memory was 225.2MB in the beginning and 433.4MB in the end (delta: -208.1MB). Peak memory consumption was 134.2MB. Max. memory is 8.0GB. [2023-12-15 19:20:48,802 INFO L158 Benchmark]: RCFGBuilder took 5958.72ms. Allocated memory was 659.6MB in the beginning and 1.3GB in the end (delta: 659.6MB). Free memory was 433.4MB in the beginning and 963.4MB in the end (delta: -530.0MB). Peak memory consumption was 526.4MB. Max. memory is 8.0GB. [2023-12-15 19:20:48,802 INFO L158 Benchmark]: TraceAbstraction took 48980.28ms. Allocated memory was 1.3GB in the beginning and 2.1GB in the end (delta: 790.6MB). Free memory was 962.4MB in the beginning and 669.8MB in the end (delta: 292.6MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-15 19:20:48,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1832.56ms. Allocated memory was 188.7MB in the beginning and 240.1MB in the end (delta: 51.4MB). Free memory was 113.3MB in the beginning and 133.5MB in the end (delta: -20.2MB). Peak memory consumption was 123.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 728.21ms. Allocated memory was 240.1MB in the beginning and 402.7MB in the end (delta: 162.5MB). Free memory was 133.5MB in the beginning and 225.2MB in the end (delta: -91.7MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 881.88ms. Allocated memory was 402.7MB in the beginning and 659.6MB in the end (delta: 256.9MB). Free memory was 225.2MB in the beginning and 433.4MB in the end (delta: -208.1MB). Peak memory consumption was 134.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5958.72ms. Allocated memory was 659.6MB in the beginning and 1.3GB in the end (delta: 659.6MB). Free memory was 433.4MB in the beginning and 963.4MB in the end (delta: -530.0MB). Peak memory consumption was 526.4MB. Max. memory is 8.0GB. * TraceAbstraction took 48980.28ms. Allocated memory was 1.3GB in the beginning and 2.1GB in the end (delta: 790.6MB). Free memory was 962.4MB in the beginning and 669.8MB in the end (delta: 292.6MB). Peak memory consumption was 1.1GB. 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: 44]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 44). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.9s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 43.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14075 SdHoareTripleChecker+Valid, 41.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14075 mSDsluCounter, 12412 SdHoareTripleChecker+Invalid, 34.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1228 mSDsCounter, 8553 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39576 IncrementalHoareTripleChecker+Invalid, 48129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8553 mSolverCounterUnsat, 11184 mSDtfsCounter, 39576 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1158 GetRequests, 1140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23631occurred in iteration=6, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 59 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3464 NumberOfCodeBlocks, 3464 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3455 ConstructedInterpolants, 0 QuantifiedInterpolants, 28812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1354 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 374/508 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