/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:58:27,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:58:27,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:58:27,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:58:27,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:58:27,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:58:27,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:58:27,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:58:27,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:58:27,879 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:58:27,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:58:27,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:58:27,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:58:27,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:58:27,881 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:58:27,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:58:27,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:58:27,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:58:27,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:58:27,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:58:27,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:58:27,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:58:27,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:58:27,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:58:27,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:58:27,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:58:27,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:58:27,886 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:58:27,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:58:27,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:58:27,886 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:58:28,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:58:28,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:58:28,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:58:28,097 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:58:28,099 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:58:28,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22.c [2023-12-16 01:58:29,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:58:29,481 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:58:29,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label22.c [2023-12-16 01:58:29,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed222c81f/259b4a1d295849d295c805e0bc06ae23/FLAG316bc7987 [2023-12-16 01:58:29,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed222c81f/259b4a1d295849d295c805e0bc06ae23 [2023-12-16 01:58:29,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:58:29,528 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:58:29,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:58:29,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:58:29,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:58:29,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:58:29" (1/1) ... [2023-12-16 01:58:29,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f8a283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:29, skipping insertion in model container [2023-12-16 01:58:29,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:58:29" (1/1) ... [2023-12-16 01:58:29,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:58:29,840 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/Problem13_label22.c[4777,4790] [2023-12-16 01:58:30,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:58:30,482 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:58:30,501 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/Problem13_label22.c[4777,4790] [2023-12-16 01:58:30,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:58:30,982 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:58:30,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30 WrapperNode [2023-12-16 01:58:30,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:58:30,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:58:30,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:58:30,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:58:30,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,451 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2023-12-16 01:58:31,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:58:31,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:58:31,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:58:31,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:58:31,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,703 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:58:31,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:58:31,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:58:31,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:58:31,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:58:31,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (1/1) ... [2023-12-16 01:58:31,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:58:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:58:32,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:58:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:58:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:58:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:58:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:58:32,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:58:32,091 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:58:32,093 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:58:35,963 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:58:35,996 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:58:35,996 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:58:35,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:58:35 BoogieIcfgContainer [2023-12-16 01:58:35,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:58:35,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:58:35,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:58:35,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:58:36,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:58:29" (1/3) ... [2023-12-16 01:58:36,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26308b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:58:36, skipping insertion in model container [2023-12-16 01:58:36,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:58:30" (2/3) ... [2023-12-16 01:58:36,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26308b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:58:36, skipping insertion in model container [2023-12-16 01:58:36,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:58:35" (3/3) ... [2023-12-16 01:58:36,001 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22.c [2023-12-16 01:58:36,013 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:58:36,013 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:58:36,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:58:36,059 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;@fca556f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:58:36,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:58:36,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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) [2023-12-16 01:58:36,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 01:58:36,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:36,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:58:36,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:36,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash 830551, now seen corresponding path program 1 times [2023-12-16 01:58:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:36,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710109130] [2023-12-16 01:58:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:36,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:36,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:36,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710109130] [2023-12-16 01:58:36,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710109130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:36,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:36,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:36,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557476650] [2023-12-16 01:58:36,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:36,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:58:36,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:58:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:58:36,211 INFO L87 Difference]: Start difference. First operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-16 01:58:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:36,299 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-16 01:58:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:58:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2023-12-16 01:58:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:36,324 INFO L225 Difference]: With dead ends: 2071 [2023-12-16 01:58:36,329 INFO L226 Difference]: Without dead ends: 1034 [2023-12-16 01:58:36,335 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 [2023-12-16 01:58:36,337 INFO L413 NwaCegarLoop]: 1876 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, 1876 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 [2023-12-16 01:58:36,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:58:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-16 01:58:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-16 01:58:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.8160696999031947) internal successors, (1876), 1033 states have internal predecessors, (1876), 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) [2023-12-16 01:58:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-16 01:58:36,427 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 31 [2023-12-16 01:58:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:36,428 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-16 01:58:36,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-16 01:58:36,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-16 01:58:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 01:58:36,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:36,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:58:36,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:58:36,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:36,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1073963365, now seen corresponding path program 1 times [2023-12-16 01:58:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223615671] [2023-12-16 01:58:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:36,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:36,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223615671] [2023-12-16 01:58:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223615671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:36,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:36,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:36,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730936865] [2023-12-16 01:58:36,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:36,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:36,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:36,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:36,557 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-16 01:58:40,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:40,310 INFO L93 Difference]: Finished difference Result 2976 states and 5471 transitions. [2023-12-16 01:58:40,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:40,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2023-12-16 01:58:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:40,321 INFO L225 Difference]: With dead ends: 2976 [2023-12-16 01:58:40,322 INFO L226 Difference]: Without dead ends: 1943 [2023-12-16 01:58:40,324 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 [2023-12-16 01:58:40,325 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 923 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:40,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 538 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 01:58:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2023-12-16 01:58:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1872. [2023-12-16 01:58:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1871 states have (on average 1.7397113842864778) internal successors, (3255), 1871 states have internal predecessors, (3255), 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) [2023-12-16 01:58:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 3255 transitions. [2023-12-16 01:58:40,367 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 3255 transitions. Word has length 31 [2023-12-16 01:58:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:40,368 INFO L495 AbstractCegarLoop]: Abstraction has 1872 states and 3255 transitions. [2023-12-16 01:58:40,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-16 01:58:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 3255 transitions. [2023-12-16 01:58:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 01:58:40,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:40,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-16 01:58:40,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:58:40,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:40,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash 627211793, now seen corresponding path program 1 times [2023-12-16 01:58:40,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:40,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915280464] [2023-12-16 01:58:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:40,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:40,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915280464] [2023-12-16 01:58:40,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915280464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:40,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:40,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833265940] [2023-12-16 01:58:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:40,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:40,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:40,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:40,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:40,518 INFO L87 Difference]: Start difference. First operand 1872 states and 3255 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-12-16 01:58:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:43,652 INFO L93 Difference]: Finished difference Result 5350 states and 9368 transitions. [2023-12-16 01:58:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:43,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2023-12-16 01:58:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:43,661 INFO L225 Difference]: With dead ends: 5350 [2023-12-16 01:58:43,662 INFO L226 Difference]: Without dead ends: 3479 [2023-12-16 01:58:43,663 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 [2023-12-16 01:58:43,664 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 884 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:43,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1077 Invalid, 3217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 01:58:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-12-16 01:58:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3478. [2023-12-16 01:58:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3477 states have (on average 1.5188380788035662) internal successors, (5281), 3477 states have internal predecessors, (5281), 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) [2023-12-16 01:58:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 5281 transitions. [2023-12-16 01:58:43,712 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 5281 transitions. Word has length 96 [2023-12-16 01:58:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:43,712 INFO L495 AbstractCegarLoop]: Abstraction has 3478 states and 5281 transitions. [2023-12-16 01:58:43,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-12-16 01:58:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 5281 transitions. [2023-12-16 01:58:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 01:58:43,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:43,714 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-16 01:58:43,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:58:43,714 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:43,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1026445620, now seen corresponding path program 1 times [2023-12-16 01:58:43,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:43,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57393125] [2023-12-16 01:58:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:43,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:43,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:43,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57393125] [2023-12-16 01:58:43,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57393125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:43,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:43,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668586279] [2023-12-16 01:58:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:43,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:43,853 INFO L87 Difference]: Start difference. First operand 3478 states and 5281 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2023-12-16 01:58:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:46,800 INFO L93 Difference]: Finished difference Result 10141 states and 15437 transitions. [2023-12-16 01:58:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2023-12-16 01:58:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:46,834 INFO L225 Difference]: With dead ends: 10141 [2023-12-16 01:58:46,834 INFO L226 Difference]: Without dead ends: 6664 [2023-12-16 01:58:46,844 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 [2023-12-16 01:58:46,847 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 976 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:46,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 875 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 01:58:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states. [2023-12-16 01:58:46,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 6656. [2023-12-16 01:58:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 6655 states have (on average 1.3729526671675432) internal successors, (9137), 6655 states have internal predecessors, (9137), 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) [2023-12-16 01:58:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 9137 transitions. [2023-12-16 01:58:46,938 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 9137 transitions. Word has length 98 [2023-12-16 01:58:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:46,939 INFO L495 AbstractCegarLoop]: Abstraction has 6656 states and 9137 transitions. [2023-12-16 01:58:46,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2023-12-16 01:58:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 9137 transitions. [2023-12-16 01:58:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 01:58:46,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:46,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-16 01:58:46,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:58:46,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:46,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:46,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1799997635, now seen corresponding path program 1 times [2023-12-16 01:58:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:46,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242968771] [2023-12-16 01:58:46,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:46,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:47,055 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:47,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:47,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242968771] [2023-12-16 01:58:47,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242968771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:47,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:47,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:47,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277021090] [2023-12-16 01:58:47,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:47,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:47,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:47,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:47,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:47,058 INFO L87 Difference]: Start difference. First operand 6656 states and 9137 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2023-12-16 01:58:49,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:49,961 INFO L93 Difference]: Finished difference Result 19636 states and 26968 transitions. [2023-12-16 01:58:49,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:49,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 104 [2023-12-16 01:58:49,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:49,992 INFO L225 Difference]: With dead ends: 19636 [2023-12-16 01:58:49,992 INFO L226 Difference]: Without dead ends: 12981 [2023-12-16 01:58:50,004 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 [2023-12-16 01:58:50,005 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 792 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:50,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1160 Invalid, 3278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:58:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12981 states. [2023-12-16 01:58:50,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12981 to 12963. [2023-12-16 01:58:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12963 states, 12962 states have (on average 1.2390834747724118) internal successors, (16061), 12962 states have internal predecessors, (16061), 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) [2023-12-16 01:58:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12963 states to 12963 states and 16061 transitions. [2023-12-16 01:58:50,203 INFO L78 Accepts]: Start accepts. Automaton has 12963 states and 16061 transitions. Word has length 104 [2023-12-16 01:58:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:50,203 INFO L495 AbstractCegarLoop]: Abstraction has 12963 states and 16061 transitions. [2023-12-16 01:58:50,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2023-12-16 01:58:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12963 states and 16061 transitions. [2023-12-16 01:58:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 01:58:50,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:50,205 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-16 01:58:50,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:58:50,205 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:50,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:50,205 INFO L85 PathProgramCache]: Analyzing trace with hash 715474261, now seen corresponding path program 1 times [2023-12-16 01:58:50,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092411385] [2023-12-16 01:58:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:50,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092411385] [2023-12-16 01:58:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092411385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:50,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:50,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:58:50,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103681531] [2023-12-16 01:58:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:50,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:50,318 INFO L87 Difference]: Start difference. First operand 12963 states and 16061 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-12-16 01:58:53,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:53,367 INFO L93 Difference]: Finished difference Result 32234 states and 40791 transitions. [2023-12-16 01:58:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2023-12-16 01:58:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:53,406 INFO L225 Difference]: With dead ends: 32234 [2023-12-16 01:58:53,406 INFO L226 Difference]: Without dead ends: 19272 [2023-12-16 01:58:53,419 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 [2023-12-16 01:58:53,421 INFO L413 NwaCegarLoop]: 1588 mSDtfsCounter, 965 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:53,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1685 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:58:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19272 states. [2023-12-16 01:58:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19272 to 19262. [2023-12-16 01:58:53,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19262 states, 19261 states have (on average 1.2407974663828463) internal successors, (23899), 19261 states have internal predecessors, (23899), 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) [2023-12-16 01:58:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19262 states to 19262 states and 23899 transitions. [2023-12-16 01:58:53,631 INFO L78 Accepts]: Start accepts. Automaton has 19262 states and 23899 transitions. Word has length 120 [2023-12-16 01:58:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:53,632 INFO L495 AbstractCegarLoop]: Abstraction has 19262 states and 23899 transitions. [2023-12-16 01:58:53,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-12-16 01:58:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 19262 states and 23899 transitions. [2023-12-16 01:58:53,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 01:58:53,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:53,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-16 01:58:53,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:58:53,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:53,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash -794636132, now seen corresponding path program 1 times [2023-12-16 01:58:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:53,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262465340] [2023-12-16 01:58:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:53,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:53,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262465340] [2023-12-16 01:58:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262465340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:53,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:53,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:58:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943925448] [2023-12-16 01:58:53,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:53,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:53,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:53,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:53,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:53,713 INFO L87 Difference]: Start difference. First operand 19262 states and 23899 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-12-16 01:58:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:56,510 INFO L93 Difference]: Finished difference Result 38541 states and 47830 transitions. [2023-12-16 01:58:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2023-12-16 01:58:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:56,534 INFO L225 Difference]: With dead ends: 38541 [2023-12-16 01:58:56,534 INFO L226 Difference]: Without dead ends: 19280 [2023-12-16 01:58:56,544 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 [2023-12-16 01:58:56,546 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 1092 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:56,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1356 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:58:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19280 states. [2023-12-16 01:58:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19280 to 19262. [2023-12-16 01:58:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19262 states, 19261 states have (on average 1.2252738694771819) internal successors, (23600), 19261 states have internal predecessors, (23600), 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) [2023-12-16 01:58:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19262 states to 19262 states and 23600 transitions. [2023-12-16 01:58:56,740 INFO L78 Accepts]: Start accepts. Automaton has 19262 states and 23600 transitions. Word has length 127 [2023-12-16 01:58:56,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:56,741 INFO L495 AbstractCegarLoop]: Abstraction has 19262 states and 23600 transitions. [2023-12-16 01:58:56,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-12-16 01:58:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 19262 states and 23600 transitions. [2023-12-16 01:58:56,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 01:58:56,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:56,743 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:58:56,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:58:56,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:56,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:56,745 INFO L85 PathProgramCache]: Analyzing trace with hash 779868864, now seen corresponding path program 1 times [2023-12-16 01:58:56,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:56,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125516651] [2023-12-16 01:58:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:56,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 01:58:56,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:56,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125516651] [2023-12-16 01:58:56,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125516651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:56,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:56,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:58:56,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943480962] [2023-12-16 01:58:56,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:56,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:56,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:56,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:56,976 INFO L87 Difference]: Start difference. First operand 19262 states and 23600 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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) [2023-12-16 01:58:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:58:59,389 INFO L93 Difference]: Finished difference Result 39310 states and 48001 transitions. [2023-12-16 01:58:59,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:58:59,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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 202 [2023-12-16 01:58:59,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:58:59,414 INFO L225 Difference]: With dead ends: 39310 [2023-12-16 01:58:59,415 INFO L226 Difference]: Without dead ends: 20049 [2023-12-16 01:58:59,430 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 [2023-12-16 01:58:59,431 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:58:59,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1204 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 01:58:59,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20049 states. [2023-12-16 01:58:59,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20049 to 20049. [2023-12-16 01:58:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20049 states, 20048 states have (on average 1.216679968076616) internal successors, (24392), 20048 states have internal predecessors, (24392), 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) [2023-12-16 01:58:59,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20049 states to 20049 states and 24392 transitions. [2023-12-16 01:58:59,617 INFO L78 Accepts]: Start accepts. Automaton has 20049 states and 24392 transitions. Word has length 202 [2023-12-16 01:58:59,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:58:59,618 INFO L495 AbstractCegarLoop]: Abstraction has 20049 states and 24392 transitions. [2023-12-16 01:58:59,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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) [2023-12-16 01:58:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 20049 states and 24392 transitions. [2023-12-16 01:58:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 01:58:59,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:58:59,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:58:59,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:58:59,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:58:59,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:58:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2043546183, now seen corresponding path program 1 times [2023-12-16 01:58:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:58:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456743633] [2023-12-16 01:58:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:58:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:58:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:58:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:58:59,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:58:59,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456743633] [2023-12-16 01:58:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456743633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:58:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:58:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:58:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161501909] [2023-12-16 01:58:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:58:59,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:58:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:58:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:58:59,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:58:59,815 INFO L87 Difference]: Start difference. First operand 20049 states and 24392 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2023-12-16 01:59:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:02,831 INFO L93 Difference]: Finished difference Result 39320 states and 48008 transitions. [2023-12-16 01:59:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 209 [2023-12-16 01:59:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:02,854 INFO L225 Difference]: With dead ends: 39320 [2023-12-16 01:59:02,855 INFO L226 Difference]: Without dead ends: 20059 [2023-12-16 01:59:02,869 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 [2023-12-16 01:59:02,873 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 886 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:02,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 926 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:59:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20059 states. [2023-12-16 01:59:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20059 to 20049. [2023-12-16 01:59:03,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20049 states, 20048 states have (on average 1.1535814046288906) internal successors, (23127), 20048 states have internal predecessors, (23127), 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) [2023-12-16 01:59:03,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20049 states to 20049 states and 23127 transitions. [2023-12-16 01:59:03,056 INFO L78 Accepts]: Start accepts. Automaton has 20049 states and 23127 transitions. Word has length 209 [2023-12-16 01:59:03,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:03,056 INFO L495 AbstractCegarLoop]: Abstraction has 20049 states and 23127 transitions. [2023-12-16 01:59:03,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2023-12-16 01:59:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 20049 states and 23127 transitions. [2023-12-16 01:59:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-16 01:59:03,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:03,060 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:03,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:59:03,060 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:03,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:03,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2130829855, now seen corresponding path program 1 times [2023-12-16 01:59:03,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:03,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736556065] [2023-12-16 01:59:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-16 01:59:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736556065] [2023-12-16 01:59:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736556065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:03,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:59:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975340585] [2023-12-16 01:59:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:03,210 INFO L87 Difference]: Start difference. First operand 20049 states and 23127 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 01:59:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:05,963 INFO L93 Difference]: Finished difference Result 45629 states and 53336 transitions. [2023-12-16 01:59:05,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:05,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 298 [2023-12-16 01:59:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:05,993 INFO L225 Difference]: With dead ends: 45629 [2023-12-16 01:59:05,993 INFO L226 Difference]: Without dead ends: 26368 [2023-12-16 01:59:06,008 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 [2023-12-16 01:59:06,009 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 967 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:06,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 784 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:59:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26368 states. [2023-12-16 01:59:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26368 to 26356. [2023-12-16 01:59:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26356 states, 26355 states have (on average 1.1452096376399166) internal successors, (30182), 26355 states have internal predecessors, (30182), 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) [2023-12-16 01:59:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26356 states to 26356 states and 30182 transitions. [2023-12-16 01:59:06,322 INFO L78 Accepts]: Start accepts. Automaton has 26356 states and 30182 transitions. Word has length 298 [2023-12-16 01:59:06,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:06,323 INFO L495 AbstractCegarLoop]: Abstraction has 26356 states and 30182 transitions. [2023-12-16 01:59:06,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2023-12-16 01:59:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 26356 states and 30182 transitions. [2023-12-16 01:59:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-12-16 01:59:06,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:06,333 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:06,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:59:06,333 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:06,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash 862809219, now seen corresponding path program 1 times [2023-12-16 01:59:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:06,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966550233] [2023-12-16 01:59:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:06,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-12-16 01:59:06,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:06,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966550233] [2023-12-16 01:59:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966550233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:06,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:06,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410629372] [2023-12-16 01:59:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:06,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:06,604 INFO L87 Difference]: Start difference. First operand 26356 states and 30182 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 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) [2023-12-16 01:59:09,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:09,499 INFO L93 Difference]: Finished difference Result 61386 states and 70043 transitions. [2023-12-16 01:59:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:09,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 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 350 [2023-12-16 01:59:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:09,536 INFO L225 Difference]: With dead ends: 61386 [2023-12-16 01:59:09,536 INFO L226 Difference]: Without dead ends: 35818 [2023-12-16 01:59:09,557 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 [2023-12-16 01:59:09,557 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 726 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:09,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1221 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 01:59:09,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35818 states. [2023-12-16 01:59:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35818 to 35810. [2023-12-16 01:59:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35810 states, 35809 states have (on average 1.1199419140439555) internal successors, (40104), 35809 states have internal predecessors, (40104), 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) [2023-12-16 01:59:09,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35810 states to 35810 states and 40104 transitions. [2023-12-16 01:59:09,879 INFO L78 Accepts]: Start accepts. Automaton has 35810 states and 40104 transitions. Word has length 350 [2023-12-16 01:59:09,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:09,880 INFO L495 AbstractCegarLoop]: Abstraction has 35810 states and 40104 transitions. [2023-12-16 01:59:09,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 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) [2023-12-16 01:59:09,880 INFO L276 IsEmpty]: Start isEmpty. Operand 35810 states and 40104 transitions. [2023-12-16 01:59:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-16 01:59:09,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:09,885 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-12-16 01:59:09,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:59:09,886 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:09,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash 268816446, now seen corresponding path program 1 times [2023-12-16 01:59:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344191579] [2023-12-16 01:59:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:09,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 119 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 01:59:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344191579] [2023-12-16 01:59:10,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344191579] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:59:10,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005971878] [2023-12-16 01:59:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:59:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:59:10,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:59:10,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:59:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:10,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:59:10,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:59:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-12-16 01:59:10,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:59:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005971878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:59:10,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-16 01:59:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096617721] [2023-12-16 01:59:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:10,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:10,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:10,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:59:10,950 INFO L87 Difference]: Start difference. First operand 35810 states and 40104 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 01:59:14,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:14,059 INFO L93 Difference]: Finished difference Result 101689 states and 114342 transitions. [2023-12-16 01:59:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:14,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 358 [2023-12-16 01:59:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:14,136 INFO L225 Difference]: With dead ends: 101689 [2023-12-16 01:59:14,136 INFO L226 Difference]: Without dead ends: 66667 [2023-12-16 01:59:14,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:59:14,165 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 1045 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:14,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1139 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:59:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66667 states. [2023-12-16 01:59:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66667 to 66646. [2023-12-16 01:59:14,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66646 states, 66645 states have (on average 1.1020481656538375) internal successors, (73446), 66645 states have internal predecessors, (73446), 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) [2023-12-16 01:59:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66646 states to 66646 states and 73446 transitions. [2023-12-16 01:59:14,911 INFO L78 Accepts]: Start accepts. Automaton has 66646 states and 73446 transitions. Word has length 358 [2023-12-16 01:59:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:14,912 INFO L495 AbstractCegarLoop]: Abstraction has 66646 states and 73446 transitions. [2023-12-16 01:59:14,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-12-16 01:59:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 66646 states and 73446 transitions. [2023-12-16 01:59:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-16 01:59:14,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:14,918 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:14,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 01:59:15,127 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,SelfDestructingSolverStorable11 [2023-12-16 01:59:15,128 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:15,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1716648351, now seen corresponding path program 1 times [2023-12-16 01:59:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:15,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631186225] [2023-12-16 01:59:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:15,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-12-16 01:59:15,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:15,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631186225] [2023-12-16 01:59:15,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631186225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:15,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:15,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:59:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364760198] [2023-12-16 01:59:15,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:15,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:15,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:15,304 INFO L87 Difference]: Start difference. First operand 66646 states and 73446 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-12-16 01:59:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:18,148 INFO L93 Difference]: Finished difference Result 128405 states and 141787 transitions. [2023-12-16 01:59:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:18,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 358 [2023-12-16 01:59:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:18,228 INFO L225 Difference]: With dead ends: 128405 [2023-12-16 01:59:18,228 INFO L226 Difference]: Without dead ends: 61760 [2023-12-16 01:59:18,268 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 [2023-12-16 01:59:18,269 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1085 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:18,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1625 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 01:59:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61760 states. [2023-12-16 01:59:19,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61760 to 56241. [2023-12-16 01:59:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56241 states, 56240 states have (on average 1.0810633001422476) internal successors, (60799), 56240 states have internal predecessors, (60799), 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) [2023-12-16 01:59:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56241 states to 56241 states and 60799 transitions. [2023-12-16 01:59:19,291 INFO L78 Accepts]: Start accepts. Automaton has 56241 states and 60799 transitions. Word has length 358 [2023-12-16 01:59:19,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:19,291 INFO L495 AbstractCegarLoop]: Abstraction has 56241 states and 60799 transitions. [2023-12-16 01:59:19,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-12-16 01:59:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 56241 states and 60799 transitions. [2023-12-16 01:59:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-12-16 01:59:19,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:19,297 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:19,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:59:19,298 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:19,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1234208885, now seen corresponding path program 1 times [2023-12-16 01:59:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:19,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162948054] [2023-12-16 01:59:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:19,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 272 proven. 113 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 01:59:20,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:20,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162948054] [2023-12-16 01:59:20,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162948054] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:59:20,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701023451] [2023-12-16 01:59:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:20,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:59:20,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:59:20,438 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) [2023-12-16 01:59:20,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:59:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:20,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:59:20,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:59:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-16 01:59:20,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:59:20,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701023451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:20,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:59:20,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-12-16 01:59:20,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464722193] [2023-12-16 01:59:20,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:20,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:20,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:20,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:59:20,670 INFO L87 Difference]: Start difference. First operand 56241 states and 60799 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-16 01:59:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:23,682 INFO L93 Difference]: Finished difference Result 111675 states and 121614 transitions. [2023-12-16 01:59:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 379 [2023-12-16 01:59:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:23,756 INFO L225 Difference]: With dead ends: 111675 [2023-12-16 01:59:23,756 INFO L226 Difference]: Without dead ends: 66461 [2023-12-16 01:59:23,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:59:23,788 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1216 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:23,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 402 Invalid, 3238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 01:59:23,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66461 states. [2023-12-16 01:59:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66461 to 66461. [2023-12-16 01:59:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66461 states, 66460 states have (on average 1.079190490520614) internal successors, (71723), 66460 states have internal predecessors, (71723), 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) [2023-12-16 01:59:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66461 states to 66461 states and 71723 transitions. [2023-12-16 01:59:24,419 INFO L78 Accepts]: Start accepts. Automaton has 66461 states and 71723 transitions. Word has length 379 [2023-12-16 01:59:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:24,419 INFO L495 AbstractCegarLoop]: Abstraction has 66461 states and 71723 transitions. [2023-12-16 01:59:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-12-16 01:59:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 66461 states and 71723 transitions. [2023-12-16 01:59:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-16 01:59:24,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:24,424 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:24,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 01:59:24,628 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,SelfDestructingSolverStorable13 [2023-12-16 01:59:24,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:24,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:24,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2081825481, now seen corresponding path program 1 times [2023-12-16 01:59:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:24,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727966781] [2023-12-16 01:59:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:24,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:24,802 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-12-16 01:59:24,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:24,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727966781] [2023-12-16 01:59:24,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727966781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:24,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:24,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:59:24,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686924214] [2023-12-16 01:59:24,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:24,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:24,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:24,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:24,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:24,804 INFO L87 Difference]: Start difference. First operand 66461 states and 71723 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2023-12-16 01:59:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:27,988 INFO L93 Difference]: Finished difference Result 144730 states and 156791 transitions. [2023-12-16 01:59:27,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:27,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 388 [2023-12-16 01:59:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:28,076 INFO L225 Difference]: With dead ends: 144730 [2023-12-16 01:59:28,077 INFO L226 Difference]: Without dead ends: 79057 [2023-12-16 01:59:28,107 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 [2023-12-16 01:59:28,108 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 788 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:28,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1887 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 01:59:28,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79057 states. Received shutdown request... [2023-12-16 01:59:28,905 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:59:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79057 to 78264. [2023-12-16 01:59:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78264 states, 78263 states have (on average 1.0746968554744898) internal successors, (84109), 78263 states have internal predecessors, (84109), 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) [2023-12-16 01:59:28,980 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:59:28,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:59:28,981 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 01:59:28,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:28,986 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:59:28,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:59:28 BoogieIcfgContainer [2023-12-16 01:59:28,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:59:28,988 INFO L158 Benchmark]: Toolchain (without parser) took 59459.28ms. Allocated memory was 289.4MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 226.9MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 01:59:28,988 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 241.2MB. Free memory is still 192.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:59:28,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1452.64ms. Allocated memory is still 289.4MB. Free memory was 226.9MB in the beginning and 212.6MB in the end (delta: 14.3MB). Peak memory consumption was 159.3MB. Max. memory is 8.0GB. [2023-12-16 01:59:28,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 467.55ms. Allocated memory was 289.4MB in the beginning and 471.9MB in the end (delta: 182.5MB). Free memory was 212.6MB in the beginning and 312.8MB in the end (delta: -100.2MB). Peak memory consumption was 93.8MB. Max. memory is 8.0GB. [2023-12-16 01:59:28,988 INFO L158 Benchmark]: Boogie Preprocessor took 532.63ms. Allocated memory is still 471.9MB. Free memory was 312.8MB in the beginning and 293.9MB in the end (delta: 18.9MB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. [2023-12-16 01:59:28,988 INFO L158 Benchmark]: RCFGBuilder took 4010.63ms. Allocated memory was 471.9MB in the beginning and 943.7MB in the end (delta: 471.9MB). Free memory was 293.9MB in the beginning and 571.3MB in the end (delta: -277.3MB). Peak memory consumption was 286.8MB. Max. memory is 8.0GB. [2023-12-16 01:59:28,989 INFO L158 Benchmark]: TraceAbstraction took 52989.84ms. Allocated memory was 943.7MB in the beginning and 2.6GB in the end (delta: 1.7GB). Free memory was 570.7MB in the beginning and 1.9GB in the end (delta: -1.3GB). Peak memory consumption was 940.6MB. Max. memory is 8.0GB. [2023-12-16 01:59:28,990 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 241.2MB. Free memory is still 192.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1452.64ms. Allocated memory is still 289.4MB. Free memory was 226.9MB in the beginning and 212.6MB in the end (delta: 14.3MB). Peak memory consumption was 159.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 467.55ms. Allocated memory was 289.4MB in the beginning and 471.9MB in the end (delta: 182.5MB). Free memory was 212.6MB in the beginning and 312.8MB in the end (delta: -100.2MB). Peak memory consumption was 93.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 532.63ms. Allocated memory is still 471.9MB. Free memory was 312.8MB in the beginning and 293.9MB in the end (delta: 18.9MB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. * RCFGBuilder took 4010.63ms. Allocated memory was 471.9MB in the beginning and 943.7MB in the end (delta: 471.9MB). Free memory was 293.9MB in the beginning and 571.3MB in the end (delta: -277.3MB). Peak memory consumption was 286.8MB. Max. memory is 8.0GB. * TraceAbstraction took 52989.84ms. Allocated memory was 943.7MB in the beginning and 2.6GB in the end (delta: 1.7GB). Free memory was 570.7MB in the beginning and 1.9GB in the end (delta: -1.3GB). Peak memory consumption was 940.6MB. 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: 118]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 118). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.9s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13045 SdHoareTripleChecker+Valid, 38.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13045 mSDsluCounter, 17755 SdHoareTripleChecker+Invalid, 32.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1736 mSDsCounter, 8747 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35280 IncrementalHoareTripleChecker+Invalid, 44027 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8747 mSolverCounterUnsat, 16019 mSDtfsCounter, 35280 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 777 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66646occurred in iteration=12, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 5696 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3886 NumberOfCodeBlocks, 3886 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3869 ConstructedInterpolants, 0 QuantifiedInterpolants, 11950 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1031 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 3867/4055 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