/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:10:07,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:10:07,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:10:07,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:10:07,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:10:07,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:10:07,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:10:07,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:10:07,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:10:07,604 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:10:07,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:10:07,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:10:07,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:10:07,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:10:07,605 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:10:07,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:10:07,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:10:07,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:10:07,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:10:07,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:10:07,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:10:07,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:10:07,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:10:07,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:10:07,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:10:07,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:10:07,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:10:07,608 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:10:07,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:10:07,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:10:07,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:10:07,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:10:07,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:10:07,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:10:07,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:10:07,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:10:07,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:10:07,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:10:07,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:10:07,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:10:07,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:10:07,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:10:07,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:10:07,614 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:10:07,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:10:07,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:10:07,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:10:07,847 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:10:07,847 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:10:07,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label31.c [2023-12-15 19:10:08,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:10:09,192 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:10:09,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label31.c [2023-12-15 19:10:09,214 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d739c4a/0939dc6873424ec6b15d4422a556e337/FLAG1f196cb18 [2023-12-15 19:10:09,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d739c4a/0939dc6873424ec6b15d4422a556e337 [2023-12-15 19:10:09,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:10:09,230 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:10:09,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:10:09,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:10:09,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:10:09,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:10:09" (1/1) ... [2023-12-15 19:10:09,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be35dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:09, skipping insertion in model container [2023-12-15 19:10:09,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:10:09" (1/1) ... [2023-12-15 19:10:09,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:10:09,439 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/Problem17_label31.c[1403,1416] [2023-12-15 19:10:09,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:10:09,940 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:10:09,950 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/Problem17_label31.c[1403,1416] [2023-12-15 19:10:10,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:10:10,128 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:10:10,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10 WrapperNode [2023-12-15 19:10:10,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:10:10,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:10:10,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:10:10,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:10:10,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,371 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2023-12-15 19:10:10,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:10:10,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:10:10,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:10:10,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:10:10,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,609 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 19:10:10,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:10:10,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:10:10,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:10:10,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:10:10,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (1/1) ... [2023-12-15 19:10:10,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:10:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:10:10,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 19:10:10,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 19:10:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:10:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:10:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:10:11,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:10:11,047 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:10:11,049 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:10:13,475 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:10:13,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:10:13,525 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:10:13,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:10:13 BoogieIcfgContainer [2023-12-15 19:10:13,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:10:13,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:10:13,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:10:13,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:10:13,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:10:09" (1/3) ... [2023-12-15 19:10:13,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6d403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:10:13, skipping insertion in model container [2023-12-15 19:10:13,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:10" (2/3) ... [2023-12-15 19:10:13,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6d403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:10:13, skipping insertion in model container [2023-12-15 19:10:13,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:10:13" (3/3) ... [2023-12-15 19:10:13,531 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label31.c [2023-12-15 19:10:13,542 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:10:13,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:10:13,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:10:13,595 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;@2a7c2acf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:10:13,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:10:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-15 19:10:13,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:13,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:13,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:13,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:13,613 INFO L85 PathProgramCache]: Analyzing trace with hash -886352552, now seen corresponding path program 1 times [2023-12-15 19:10:13,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:13,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733692214] [2023-12-15 19:10:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:13,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:13,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:13,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733692214] [2023-12-15 19:10:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733692214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:13,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:13,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:13,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503132763] [2023-12-15 19:10:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:13,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:10:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:10:13,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:10:13,778 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:13,859 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-15 19:10:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:10:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-15 19:10:13,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:13,877 INFO L225 Difference]: With dead ends: 1055 [2023-12-15 19:10:13,877 INFO L226 Difference]: Without dead ends: 526 [2023-12-15 19:10:13,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:10:13,882 INFO L413 NwaCegarLoop]: 935 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, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:13,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 19:10:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-15 19:10:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-15 19:10:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-15 19:10:13,948 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 7 [2023-12-15 19:10:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:13,950 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-15 19:10:13,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-15 19:10:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-15 19:10:13,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:13,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:13,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 19:10:13,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:13,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -888903046, now seen corresponding path program 1 times [2023-12-15 19:10:13,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:13,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471444296] [2023-12-15 19:10:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:13,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:14,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:14,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471444296] [2023-12-15 19:10:14,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471444296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:14,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:14,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:14,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14980047] [2023-12-15 19:10:14,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:14,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:14,033 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:16,100 INFO L93 Difference]: Finished difference Result 1501 states and 2698 transitions. [2023-12-15 19:10:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-12-15 19:10:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:16,104 INFO L225 Difference]: With dead ends: 1501 [2023-12-15 19:10:16,105 INFO L226 Difference]: Without dead ends: 976 [2023-12-15 19:10:16,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:16,107 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 464 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:16,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 448 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 19:10:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-15 19:10:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 970. [2023-12-15 19:10:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 1.5541795665634675) internal successors, (1506), 969 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1506 transitions. [2023-12-15 19:10:16,124 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1506 transitions. Word has length 7 [2023-12-15 19:10:16,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:16,125 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1506 transitions. [2023-12-15 19:10:16,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1506 transitions. [2023-12-15 19:10:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 19:10:16,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:16,127 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 19:10:16,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 19:10:16,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:16,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:16,128 INFO L85 PathProgramCache]: Analyzing trace with hash 687201154, now seen corresponding path program 1 times [2023-12-15 19:10:16,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:16,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001642350] [2023-12-15 19:10:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:16,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:16,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:16,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001642350] [2023-12-15 19:10:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001642350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:16,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:16,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702857399] [2023-12-15 19:10:16,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:16,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:16,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:16,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:16,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:16,283 INFO L87 Difference]: Start difference. First operand 970 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:18,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:18,117 INFO L93 Difference]: Finished difference Result 2812 states and 4380 transitions. [2023-12-15 19:10:18,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:18,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 19:10:18,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:18,122 INFO L225 Difference]: With dead ends: 2812 [2023-12-15 19:10:18,122 INFO L226 Difference]: Without dead ends: 1843 [2023-12-15 19:10:18,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:18,124 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 405 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:18,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 577 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 19:10:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-12-15 19:10:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1840. [2023-12-15 19:10:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1839 states have (on average 1.3501903208265362) internal successors, (2483), 1839 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2483 transitions. [2023-12-15 19:10:18,150 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2483 transitions. Word has length 74 [2023-12-15 19:10:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:18,153 INFO L495 AbstractCegarLoop]: Abstraction has 1840 states and 2483 transitions. [2023-12-15 19:10:18,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2483 transitions. [2023-12-15 19:10:18,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-15 19:10:18,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:18,161 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 19:10:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 19:10:18,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:18,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1812824410, now seen corresponding path program 1 times [2023-12-15 19:10:18,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:18,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629278277] [2023-12-15 19:10:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:18,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:18,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629278277] [2023-12-15 19:10:18,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629278277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:18,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:18,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:18,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397558647] [2023-12-15 19:10:18,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:18,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:10:18,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:18,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:10:18,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:10:18,310 INFO L87 Difference]: Start difference. First operand 1840 states and 2483 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:21,588 INFO L93 Difference]: Finished difference Result 5862 states and 8155 transitions. [2023-12-15 19:10:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:10:21,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-15 19:10:21,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:21,598 INFO L225 Difference]: With dead ends: 5862 [2023-12-15 19:10:21,599 INFO L226 Difference]: Without dead ends: 4023 [2023-12-15 19:10:21,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:10:21,605 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1036 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 3522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:21,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 409 Invalid, 3522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-15 19:10:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-12-15 19:10:21,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4019. [2023-12-15 19:10:21,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4018 states have (on average 1.326281732205077) internal successors, (5329), 4018 states have internal predecessors, (5329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5329 transitions. [2023-12-15 19:10:21,655 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5329 transitions. Word has length 77 [2023-12-15 19:10:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:21,656 INFO L495 AbstractCegarLoop]: Abstraction has 4019 states and 5329 transitions. [2023-12-15 19:10:21,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5329 transitions. [2023-12-15 19:10:21,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 19:10:21,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:21,662 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:21,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 19:10:21,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:21,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash -465182885, now seen corresponding path program 1 times [2023-12-15 19:10:21,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:21,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850892513] [2023-12-15 19:10:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:21,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 63 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 19:10:22,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:22,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850892513] [2023-12-15 19:10:22,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850892513] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:10:22,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613437630] [2023-12-15 19:10:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:22,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:10:22,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:10:22,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:10:22,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:10:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:22,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:10:22,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:10:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-15 19:10:22,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:10:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613437630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:22,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:10:22,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 19:10:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903319445] [2023-12-15 19:10:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:22,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:22,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:22,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:22,150 INFO L87 Difference]: Start difference. First operand 4019 states and 5329 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:23,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:23,961 INFO L93 Difference]: Finished difference Result 10594 states and 14356 transitions. [2023-12-15 19:10:23,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:23,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 142 [2023-12-15 19:10:23,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:23,980 INFO L225 Difference]: With dead ends: 10594 [2023-12-15 19:10:23,981 INFO L226 Difference]: Without dead ends: 7001 [2023-12-15 19:10:23,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:23,985 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 599 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:23,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 715 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 19:10:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7001 states. [2023-12-15 19:10:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7001 to 6575. [2023-12-15 19:10:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6574 states have (on average 1.3542744143595984) internal successors, (8903), 6574 states have internal predecessors, (8903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 8903 transitions. [2023-12-15 19:10:24,071 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 8903 transitions. Word has length 142 [2023-12-15 19:10:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:24,073 INFO L495 AbstractCegarLoop]: Abstraction has 6575 states and 8903 transitions. [2023-12-15 19:10:24,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:24,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 8903 transitions. [2023-12-15 19:10:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 19:10:24,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:24,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:24,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 19:10:24,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:10:24,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:24,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:24,280 INFO L85 PathProgramCache]: Analyzing trace with hash 164911431, now seen corresponding path program 1 times [2023-12-15 19:10:24,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:24,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091877392] [2023-12-15 19:10:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-15 19:10:24,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:24,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091877392] [2023-12-15 19:10:24,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091877392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:24,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:24,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022319824] [2023-12-15 19:10:24,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:24,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:24,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:24,411 INFO L87 Difference]: Start difference. First operand 6575 states and 8903 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:25,924 INFO L93 Difference]: Finished difference Result 13149 states and 17883 transitions. [2023-12-15 19:10:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:25,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 150 [2023-12-15 19:10:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:25,940 INFO L225 Difference]: With dead ends: 13149 [2023-12-15 19:10:25,941 INFO L226 Difference]: Without dead ends: 6571 [2023-12-15 19:10:25,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:25,948 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 381 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:25,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 581 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:10:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2023-12-15 19:10:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 5296. [2023-12-15 19:10:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 1.2192634560906515) internal successors, (6456), 5295 states have internal predecessors, (6456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:26,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6456 transitions. [2023-12-15 19:10:26,014 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6456 transitions. Word has length 150 [2023-12-15 19:10:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:26,015 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6456 transitions. [2023-12-15 19:10:26,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:26,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6456 transitions. [2023-12-15 19:10:26,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-15 19:10:26,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:26,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:26,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 19:10:26,016 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:26,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash -142451053, now seen corresponding path program 1 times [2023-12-15 19:10:26,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195895749] [2023-12-15 19:10:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:26,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:26,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:26,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195895749] [2023-12-15 19:10:26,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195895749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:26,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:26,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849132506] [2023-12-15 19:10:26,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:26,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:26,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:26,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:26,133 INFO L87 Difference]: Start difference. First operand 5296 states and 6456 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:27,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:27,759 INFO L93 Difference]: Finished difference Result 13148 states and 16413 transitions. [2023-12-15 19:10:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:27,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2023-12-15 19:10:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:27,781 INFO L225 Difference]: With dead ends: 13148 [2023-12-15 19:10:27,781 INFO L226 Difference]: Without dead ends: 7853 [2023-12-15 19:10:27,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:27,799 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 491 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:27,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 799 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 19:10:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2023-12-15 19:10:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7853. [2023-12-15 19:10:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7853 states, 7852 states have (on average 1.206571574121243) internal successors, (9474), 7852 states have internal predecessors, (9474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7853 states to 7853 states and 9474 transitions. [2023-12-15 19:10:28,040 INFO L78 Accepts]: Start accepts. Automaton has 7853 states and 9474 transitions. Word has length 163 [2023-12-15 19:10:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:28,040 INFO L495 AbstractCegarLoop]: Abstraction has 7853 states and 9474 transitions. [2023-12-15 19:10:28,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 7853 states and 9474 transitions. [2023-12-15 19:10:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-15 19:10:28,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:28,042 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-15 19:10:28,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 19:10:28,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:28,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1196853403, now seen corresponding path program 1 times [2023-12-15 19:10:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489386180] [2023-12-15 19:10:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:28,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-15 19:10:28,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489386180] [2023-12-15 19:10:28,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489386180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:28,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:28,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:28,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511257611] [2023-12-15 19:10:28,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:28,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:28,217 INFO L87 Difference]: Start difference. First operand 7853 states and 9474 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:29,653 INFO L93 Difference]: Finished difference Result 19093 states and 23018 transitions. [2023-12-15 19:10:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:29,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 260 [2023-12-15 19:10:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:29,681 INFO L225 Difference]: With dead ends: 19093 [2023-12-15 19:10:29,685 INFO L226 Difference]: Without dead ends: 10391 [2023-12-15 19:10:29,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:29,696 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 436 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:29,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 943 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:10:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10391 states. [2023-12-15 19:10:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10391 to 7406. [2023-12-15 19:10:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7405 states have (on average 1.1634031060094532) internal successors, (8615), 7405 states have internal predecessors, (8615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 8615 transitions. [2023-12-15 19:10:29,901 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 8615 transitions. Word has length 260 [2023-12-15 19:10:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:29,901 INFO L495 AbstractCegarLoop]: Abstraction has 7406 states and 8615 transitions. [2023-12-15 19:10:29,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 8615 transitions. [2023-12-15 19:10:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-15 19:10:29,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:29,913 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-15 19:10:29,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 19:10:29,913 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:29,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1766775569, now seen corresponding path program 1 times [2023-12-15 19:10:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:29,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919606468] [2023-12-15 19:10:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-12-15 19:10:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:30,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919606468] [2023-12-15 19:10:30,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919606468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:30,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:30,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511511747] [2023-12-15 19:10:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:30,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:30,146 INFO L87 Difference]: Start difference. First operand 7406 states and 8615 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:31,786 INFO L93 Difference]: Finished difference Result 18634 states and 21933 transitions. [2023-12-15 19:10:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 264 [2023-12-15 19:10:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:31,822 INFO L225 Difference]: With dead ends: 18634 [2023-12-15 19:10:31,823 INFO L226 Difference]: Without dead ends: 11228 [2023-12-15 19:10:31,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:31,845 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 450 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:31,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 419 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11228 states. [2023-12-15 19:10:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11228 to 8659. [2023-12-15 19:10:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8659 states, 8658 states have (on average 1.14991914991915) internal successors, (9956), 8658 states have internal predecessors, (9956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 9956 transitions. [2023-12-15 19:10:31,954 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 9956 transitions. Word has length 264 [2023-12-15 19:10:31,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:31,955 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 9956 transitions. [2023-12-15 19:10:31,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 9956 transitions. [2023-12-15 19:10:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-15 19:10:31,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:31,957 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:31,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 19:10:31,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:31,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1943894659, now seen corresponding path program 1 times [2023-12-15 19:10:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816289509] [2023-12-15 19:10:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-15 19:10:32,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:32,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816289509] [2023-12-15 19:10:32,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816289509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:32,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:32,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:32,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096383429] [2023-12-15 19:10:32,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:32,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:32,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:32,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:32,108 INFO L87 Difference]: Start difference. First operand 8659 states and 9956 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:33,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:33,831 INFO L93 Difference]: Finished difference Result 21996 states and 25307 transitions. [2023-12-15 19:10:33,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:33,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 277 [2023-12-15 19:10:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:33,852 INFO L225 Difference]: With dead ends: 21996 [2023-12-15 19:10:33,852 INFO L226 Difference]: Without dead ends: 13338 [2023-12-15 19:10:33,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:33,861 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 482 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:33,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 390 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2023-12-15 19:10:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 11634. [2023-12-15 19:10:34,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11634 states, 11633 states have (on average 1.1423536491016935) internal successors, (13289), 11633 states have internal predecessors, (13289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11634 states to 11634 states and 13289 transitions. [2023-12-15 19:10:34,045 INFO L78 Accepts]: Start accepts. Automaton has 11634 states and 13289 transitions. Word has length 277 [2023-12-15 19:10:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:34,046 INFO L495 AbstractCegarLoop]: Abstraction has 11634 states and 13289 transitions. [2023-12-15 19:10:34,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11634 states and 13289 transitions. [2023-12-15 19:10:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-15 19:10:34,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:34,049 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-15 19:10:34,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 19:10:34,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:34,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2131638992, now seen corresponding path program 1 times [2023-12-15 19:10:34,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:34,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920496109] [2023-12-15 19:10:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:34,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 19:10:34,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:34,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920496109] [2023-12-15 19:10:34,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920496109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:34,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:34,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:34,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627226905] [2023-12-15 19:10:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:34,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:34,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:34,292 INFO L87 Difference]: Start difference. First operand 11634 states and 13289 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:36,233 INFO L93 Difference]: Finished difference Result 28831 states and 33258 transitions. [2023-12-15 19:10:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:36,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 321 [2023-12-15 19:10:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:36,255 INFO L225 Difference]: With dead ends: 28831 [2023-12-15 19:10:36,255 INFO L226 Difference]: Without dead ends: 16773 [2023-12-15 19:10:36,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:36,281 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 381 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:36,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 908 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 19:10:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16773 states. [2023-12-15 19:10:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16773 to 16341. [2023-12-15 19:10:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16341 states, 16340 states have (on average 1.1277233782129743) internal successors, (18427), 16340 states have internal predecessors, (18427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16341 states to 16341 states and 18427 transitions. [2023-12-15 19:10:36,458 INFO L78 Accepts]: Start accepts. Automaton has 16341 states and 18427 transitions. Word has length 321 [2023-12-15 19:10:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:36,458 INFO L495 AbstractCegarLoop]: Abstraction has 16341 states and 18427 transitions. [2023-12-15 19:10:36,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 16341 states and 18427 transitions. [2023-12-15 19:10:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-15 19:10:36,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:36,463 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-15 19:10:36,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 19:10:36,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:36,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1912068378, now seen corresponding path program 1 times [2023-12-15 19:10:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003053470] [2023-12-15 19:10:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-15 19:10:36,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003053470] [2023-12-15 19:10:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003053470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:36,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:36,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:36,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139643716] [2023-12-15 19:10:36,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:36,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:36,758 INFO L87 Difference]: Start difference. First operand 16341 states and 18427 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:38,472 INFO L93 Difference]: Finished difference Result 39097 states and 44178 transitions. [2023-12-15 19:10:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:38,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 328 [2023-12-15 19:10:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:38,498 INFO L225 Difference]: With dead ends: 39097 [2023-12-15 19:10:38,498 INFO L226 Difference]: Without dead ends: 22325 [2023-12-15 19:10:38,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:38,511 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 391 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:38,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 760 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:38,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22325 states. [2023-12-15 19:10:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22325 to 19337. [2023-12-15 19:10:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19337 states, 19336 states have (on average 1.1314129085643359) internal successors, (21877), 19336 states have internal predecessors, (21877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19337 states to 19337 states and 21877 transitions. [2023-12-15 19:10:38,695 INFO L78 Accepts]: Start accepts. Automaton has 19337 states and 21877 transitions. Word has length 328 [2023-12-15 19:10:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:38,696 INFO L495 AbstractCegarLoop]: Abstraction has 19337 states and 21877 transitions. [2023-12-15 19:10:38,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19337 states and 21877 transitions. [2023-12-15 19:10:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-15 19:10:38,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:38,703 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:10:38,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 19:10:38,703 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:38,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash -79761084, now seen corresponding path program 1 times [2023-12-15 19:10:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:38,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392312592] [2023-12-15 19:10:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-12-15 19:10:38,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392312592] [2023-12-15 19:10:38,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392312592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:38,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398268284] [2023-12-15 19:10:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:38,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:38,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:38,895 INFO L87 Difference]: Start difference. First operand 19337 states and 21877 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:40,356 INFO L93 Difference]: Finished difference Result 45058 states and 51453 transitions. [2023-12-15 19:10:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 402 [2023-12-15 19:10:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:40,391 INFO L225 Difference]: With dead ends: 45058 [2023-12-15 19:10:40,391 INFO L226 Difference]: Without dead ends: 25297 [2023-12-15 19:10:40,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:40,406 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 340 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:40,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 785 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 19:10:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25297 states. [2023-12-15 19:10:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25297 to 19311. [2023-12-15 19:10:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19311 states, 19310 states have (on average 1.131227343345417) internal successors, (21844), 19310 states have internal predecessors, (21844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19311 states to 19311 states and 21844 transitions. [2023-12-15 19:10:40,604 INFO L78 Accepts]: Start accepts. Automaton has 19311 states and 21844 transitions. Word has length 402 [2023-12-15 19:10:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:40,605 INFO L495 AbstractCegarLoop]: Abstraction has 19311 states and 21844 transitions. [2023-12-15 19:10:40,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 19311 states and 21844 transitions. [2023-12-15 19:10:40,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-15 19:10:40,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:40,616 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:10:40,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 19:10:40,617 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:40,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:40,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1372487369, now seen corresponding path program 1 times [2023-12-15 19:10:40,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:40,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134690852] [2023-12-15 19:10:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:40,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-12-15 19:10:40,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:40,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134690852] [2023-12-15 19:10:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134690852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:40,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:40,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:40,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047591727] [2023-12-15 19:10:40,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:40,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:40,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:40,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:40,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:40,889 INFO L87 Difference]: Start difference. First operand 19311 states and 21844 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:42,627 INFO L93 Difference]: Finished difference Result 47141 states and 53347 transitions. [2023-12-15 19:10:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:42,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 403 [2023-12-15 19:10:42,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:42,658 INFO L225 Difference]: With dead ends: 47141 [2023-12-15 19:10:42,658 INFO L226 Difference]: Without dead ends: 26972 [2023-12-15 19:10:42,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:42,672 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 445 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:42,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 659 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26972 states. [2023-12-15 19:10:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26972 to 23985. [2023-12-15 19:10:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23985 states, 23984 states have (on average 1.1227901934623081) internal successors, (26929), 23984 states have internal predecessors, (26929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23985 states to 23985 states and 26929 transitions. [2023-12-15 19:10:42,896 INFO L78 Accepts]: Start accepts. Automaton has 23985 states and 26929 transitions. Word has length 403 [2023-12-15 19:10:42,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:42,896 INFO L495 AbstractCegarLoop]: Abstraction has 23985 states and 26929 transitions. [2023-12-15 19:10:42,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 23985 states and 26929 transitions. [2023-12-15 19:10:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-12-15 19:10:42,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:42,903 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:10:42,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 19:10:42,903 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:42,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash 581900032, now seen corresponding path program 1 times [2023-12-15 19:10:42,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:42,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505605192] [2023-12-15 19:10:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:42,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 19:10:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505605192] [2023-12-15 19:10:43,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505605192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:43,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:43,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 19:10:43,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090060711] [2023-12-15 19:10:43,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:43,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:10:43,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:10:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:10:43,233 INFO L87 Difference]: Start difference. First operand 23985 states and 26929 transitions. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:45,720 INFO L93 Difference]: Finished difference Result 61630 states and 69116 transitions. [2023-12-15 19:10:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:10:45,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 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 407 [2023-12-15 19:10:45,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:45,759 INFO L225 Difference]: With dead ends: 61630 [2023-12-15 19:10:45,760 INFO L226 Difference]: Without dead ends: 37646 [2023-12-15 19:10:45,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:10:45,779 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 825 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:45,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 208 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 19:10:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37646 states. [2023-12-15 19:10:46,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37646 to 33797. [2023-12-15 19:10:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33797 states, 33796 states have (on average 1.1233282045212452) internal successors, (37964), 33796 states have internal predecessors, (37964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33797 states to 33797 states and 37964 transitions. [2023-12-15 19:10:46,132 INFO L78 Accepts]: Start accepts. Automaton has 33797 states and 37964 transitions. Word has length 407 [2023-12-15 19:10:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:46,132 INFO L495 AbstractCegarLoop]: Abstraction has 33797 states and 37964 transitions. [2023-12-15 19:10:46,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33797 states and 37964 transitions. [2023-12-15 19:10:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-15 19:10:46,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:46,138 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:10:46,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 19:10:46,138 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:46,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1336324562, now seen corresponding path program 1 times [2023-12-15 19:10:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181072498] [2023-12-15 19:10:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-15 19:10:46,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:46,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181072498] [2023-12-15 19:10:46,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181072498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:46,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:46,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:46,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272455442] [2023-12-15 19:10:46,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:46,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:46,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:46,614 INFO L87 Difference]: Start difference. First operand 33797 states and 37964 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:48,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:48,462 INFO L93 Difference]: Finished difference Result 76538 states and 86182 transitions. [2023-12-15 19:10:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:48,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 426 [2023-12-15 19:10:48,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:48,508 INFO L225 Difference]: With dead ends: 76538 [2023-12-15 19:10:48,508 INFO L226 Difference]: Without dead ends: 42742 [2023-12-15 19:10:48,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:48,532 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 391 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:48,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 330 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42742 states. [2023-12-15 19:10:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42742 to 42306. [2023-12-15 19:10:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42306 states, 42305 states have (on average 1.1180711499822715) internal successors, (47300), 42305 states have internal predecessors, (47300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42306 states to 42306 states and 47300 transitions. [2023-12-15 19:10:49,065 INFO L78 Accepts]: Start accepts. Automaton has 42306 states and 47300 transitions. Word has length 426 [2023-12-15 19:10:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:49,066 INFO L495 AbstractCegarLoop]: Abstraction has 42306 states and 47300 transitions. [2023-12-15 19:10:49,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 42306 states and 47300 transitions. [2023-12-15 19:10:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-15 19:10:49,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:49,096 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 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] [2023-12-15 19:10:49,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 19:10:49,097 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:49,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1120045746, now seen corresponding path program 1 times [2023-12-15 19:10:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573289248] [2023-12-15 19:10:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-15 19:10:49,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:49,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573289248] [2023-12-15 19:10:49,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573289248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:49,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:49,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:49,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645275062] [2023-12-15 19:10:49,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:49,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:49,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:49,914 INFO L87 Difference]: Start difference. First operand 42306 states and 47300 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:51,749 INFO L93 Difference]: Finished difference Result 97813 states and 108842 transitions. [2023-12-15 19:10:51,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:51,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 427 [2023-12-15 19:10:51,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:51,814 INFO L225 Difference]: With dead ends: 97813 [2023-12-15 19:10:51,815 INFO L226 Difference]: Without dead ends: 54656 [2023-12-15 19:10:51,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:51,855 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 373 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 821 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54656 states. [2023-12-15 19:10:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54656 to 52511. [2023-12-15 19:10:52,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52511 states, 52510 states have (on average 1.1033326985336127) internal successors, (57936), 52510 states have internal predecessors, (57936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52511 states to 52511 states and 57936 transitions. [2023-12-15 19:10:52,524 INFO L78 Accepts]: Start accepts. Automaton has 52511 states and 57936 transitions. Word has length 427 [2023-12-15 19:10:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:52,525 INFO L495 AbstractCegarLoop]: Abstraction has 52511 states and 57936 transitions. [2023-12-15 19:10:52,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 52511 states and 57936 transitions. [2023-12-15 19:10:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-15 19:10:52,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:52,560 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 19:10:52,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 19:10:52,560 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:52,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash -546389228, now seen corresponding path program 1 times [2023-12-15 19:10:52,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:52,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742893983] [2023-12-15 19:10:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:52,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-12-15 19:10:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:53,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742893983] [2023-12-15 19:10:53,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742893983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:53,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590882987] [2023-12-15 19:10:53,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:53,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:53,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:53,003 INFO L87 Difference]: Start difference. First operand 52511 states and 57936 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:54,741 INFO L93 Difference]: Finished difference Result 121206 states and 133656 transitions. [2023-12-15 19:10:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:54,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 450 [2023-12-15 19:10:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:54,822 INFO L225 Difference]: With dead ends: 121206 [2023-12-15 19:10:54,822 INFO L226 Difference]: Without dead ends: 68268 [2023-12-15 19:10:54,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:54,874 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 294 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:54,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 822 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:10:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68268 states. [2023-12-15 19:10:55,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68268 to 67398. [2023-12-15 19:10:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67398 states, 67397 states have (on average 1.0915619389587075) internal successors, (73568), 67397 states have internal predecessors, (73568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67398 states to 67398 states and 73568 transitions. [2023-12-15 19:10:55,702 INFO L78 Accepts]: Start accepts. Automaton has 67398 states and 73568 transitions. Word has length 450 [2023-12-15 19:10:55,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:55,703 INFO L495 AbstractCegarLoop]: Abstraction has 67398 states and 73568 transitions. [2023-12-15 19:10:55,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 67398 states and 73568 transitions. [2023-12-15 19:10:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-15 19:10:55,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:55,710 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 19:10:55,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 19:10:55,710 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:55,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash -854575498, now seen corresponding path program 1 times [2023-12-15 19:10:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:55,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893947628] [2023-12-15 19:10:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:56,069 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-15 19:10:56,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:56,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893947628] [2023-12-15 19:10:56,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893947628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:56,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:56,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:56,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064384641] [2023-12-15 19:10:56,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:56,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:56,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:56,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:56,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:56,072 INFO L87 Difference]: Start difference. First operand 67398 states and 73568 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:58,090 INFO L93 Difference]: Finished difference Result 142481 states and 155647 transitions. [2023-12-15 19:10:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 450 [2023-12-15 19:10:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:58,174 INFO L225 Difference]: With dead ends: 142481 [2023-12-15 19:10:58,174 INFO L226 Difference]: Without dead ends: 74656 [2023-12-15 19:10:58,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:58,202 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 434 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:58,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 244 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 19:10:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74656 states. [2023-12-15 19:10:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74656 to 72503. [2023-12-15 19:10:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72503 states, 72502 states have (on average 1.0910319715318197) internal successors, (79102), 72502 states have internal predecessors, (79102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:59,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72503 states to 72503 states and 79102 transitions. [2023-12-15 19:10:59,126 INFO L78 Accepts]: Start accepts. Automaton has 72503 states and 79102 transitions. Word has length 450 [2023-12-15 19:10:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:59,126 INFO L495 AbstractCegarLoop]: Abstraction has 72503 states and 79102 transitions. [2023-12-15 19:10:59,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:59,127 INFO L276 IsEmpty]: Start isEmpty. Operand 72503 states and 79102 transitions. [2023-12-15 19:10:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2023-12-15 19:10:59,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:59,133 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:59,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 19:10:59,133 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:59,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:59,135 INFO L85 PathProgramCache]: Analyzing trace with hash -133256135, now seen corresponding path program 1 times [2023-12-15 19:10:59,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:59,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347495296] [2023-12-15 19:10:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:59,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-15 19:10:59,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:59,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347495296] [2023-12-15 19:10:59,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347495296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:59,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:59,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500308247] [2023-12-15 19:10:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:59,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:59,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:59,719 INFO L87 Difference]: Start difference. First operand 72503 states and 79102 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:11:01,471 INFO L93 Difference]: Finished difference Result 155654 states and 169703 transitions. [2023-12-15 19:11:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:11:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 453 [2023-12-15 19:11:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:11:01,595 INFO L225 Difference]: With dead ends: 155654 [2023-12-15 19:11:01,595 INFO L226 Difference]: Without dead ends: 82727 [2023-12-15 19:11:01,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:01,641 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 247 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:01,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 776 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:11:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82727 states. [2023-12-15 19:11:02,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82727 to 78039. [2023-12-15 19:11:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78039 states, 78038 states have (on average 1.0858940516158795) internal successors, (84741), 78038 states have internal predecessors, (84741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78039 states to 78039 states and 84741 transitions. [2023-12-15 19:11:02,614 INFO L78 Accepts]: Start accepts. Automaton has 78039 states and 84741 transitions. Word has length 453 [2023-12-15 19:11:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 78039 states and 84741 transitions. [2023-12-15 19:11:02,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 78039 states and 84741 transitions. [2023-12-15 19:11:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-12-15 19:11:02,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:02,623 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:02,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 19:11:02,623 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:02,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1845463455, now seen corresponding path program 1 times [2023-12-15 19:11:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:02,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946752873] [2023-12-15 19:11:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:02,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 19:11:03,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:03,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946752873] [2023-12-15 19:11:03,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946752873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:11:03,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:11:03,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:11:03,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932255322] [2023-12-15 19:11:03,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:11:03,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:11:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:03,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:11:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:03,039 INFO L87 Difference]: Start difference. First operand 78039 states and 84741 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:05,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:11:05,019 INFO L93 Difference]: Finished difference Result 179917 states and 195662 transitions. [2023-12-15 19:11:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:11:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 498 [2023-12-15 19:11:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:11:05,139 INFO L225 Difference]: With dead ends: 179917 [2023-12-15 19:11:05,140 INFO L226 Difference]: Without dead ends: 101441 [2023-12-15 19:11:05,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:05,181 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 483 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:05,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 701 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 19:11:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101441 states. [2023-12-15 19:11:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101441 to 96310. [2023-12-15 19:11:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96310 states, 96309 states have (on average 1.0823391375676208) internal successors, (104239), 96309 states have internal predecessors, (104239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96310 states to 96310 states and 104239 transitions. [2023-12-15 19:11:06,311 INFO L78 Accepts]: Start accepts. Automaton has 96310 states and 104239 transitions. Word has length 498 [2023-12-15 19:11:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:06,311 INFO L495 AbstractCegarLoop]: Abstraction has 96310 states and 104239 transitions. [2023-12-15 19:11:06,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 96310 states and 104239 transitions. [2023-12-15 19:11:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-12-15 19:11:06,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:06,323 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:11:06,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 19:11:06,323 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:06,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1353035066, now seen corresponding path program 1 times [2023-12-15 19:11:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:06,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676844095] [2023-12-15 19:11:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2023-12-15 19:11:06,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:06,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676844095] [2023-12-15 19:11:06,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676844095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:11:06,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:11:06,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:11:06,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762186158] [2023-12-15 19:11:06,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:11:06,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:11:06,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:06,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:11:06,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:06,929 INFO L87 Difference]: Start difference. First operand 96310 states and 104239 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:09,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:11:09,103 INFO L93 Difference]: Finished difference Result 208401 states and 225589 transitions. [2023-12-15 19:11:09,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:11:09,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 542 [2023-12-15 19:11:09,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:11:09,253 INFO L225 Difference]: With dead ends: 208401 [2023-12-15 19:11:09,254 INFO L226 Difference]: Without dead ends: 112092 [2023-12-15 19:11:09,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:09,302 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 307 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:09,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 291 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 19:11:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112092 states. [2023-12-15 19:11:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112092 to 109092. [2023-12-15 19:11:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109092 states, 109091 states have (on average 1.0811890990090842) internal successors, (117948), 109091 states have internal predecessors, (117948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109092 states to 109092 states and 117948 transitions. [2023-12-15 19:11:10,647 INFO L78 Accepts]: Start accepts. Automaton has 109092 states and 117948 transitions. Word has length 542 [2023-12-15 19:11:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:10,647 INFO L495 AbstractCegarLoop]: Abstraction has 109092 states and 117948 transitions. [2023-12-15 19:11:10,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 109092 states and 117948 transitions. [2023-12-15 19:11:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2023-12-15 19:11:10,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:10,661 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-15 19:11:10,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 19:11:10,661 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:10,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1979193839, now seen corresponding path program 1 times [2023-12-15 19:11:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:10,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50818105] [2023-12-15 19:11:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:10,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2023-12-15 19:11:11,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:11,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50818105] [2023-12-15 19:11:11,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50818105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:11:11,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:11:11,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 19:11:11,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695830664] [2023-12-15 19:11:11,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:11:11,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 19:11:11,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 19:11:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:11:11,132 INFO L87 Difference]: Start difference. First operand 109092 states and 117948 transitions. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-15 19:11:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:11:11,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:11:11,470 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 92 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:11,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 12 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 19:11:11,472 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:11:11,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 19:11:11,472 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (109092states) and FLOYD_HOARE automaton (currently 4 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (273 states constructed, input type IntersectNwa). [2023-12-15 19:11:11,476 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:11,477 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:11:11,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:11:11 BoogieIcfgContainer [2023-12-15 19:11:11,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:11:11,479 INFO L158 Benchmark]: Toolchain (without parser) took 62248.70ms. Allocated memory was 177.2MB in the beginning and 5.1GB in the end (delta: 5.0GB). Free memory was 110.6MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 19:11:11,479 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 177.2MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:11:11,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 898.05ms. Allocated memory was 177.2MB in the beginning and 287.3MB in the end (delta: 110.1MB). Free memory was 110.4MB in the beginning and 154.6MB in the end (delta: -44.2MB). Peak memory consumption was 66.7MB. Max. memory is 8.0GB. [2023-12-15 19:11:11,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 240.37ms. Allocated memory is still 287.3MB. Free memory was 154.6MB in the beginning and 91.2MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-15 19:11:11,479 INFO L158 Benchmark]: Boogie Preprocessor took 557.27ms. Allocated memory is still 287.3MB. Free memory was 91.2MB in the beginning and 166.6MB in the end (delta: -75.5MB). Peak memory consumption was 68.7MB. Max. memory is 8.0GB. [2023-12-15 19:11:11,480 INFO L158 Benchmark]: RCFGBuilder took 2595.96ms. Allocated memory was 287.3MB in the beginning and 534.8MB in the end (delta: 247.5MB). Free memory was 166.6MB in the beginning and 380.9MB in the end (delta: -214.3MB). Peak memory consumption was 136.4MB. Max. memory is 8.0GB. [2023-12-15 19:11:11,480 INFO L158 Benchmark]: TraceAbstraction took 57951.95ms. Allocated memory was 534.8MB in the beginning and 5.1GB in the end (delta: 4.6GB). Free memory was 380.4MB in the beginning and 3.1GB in the end (delta: -2.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 19:11:11,481 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 177.2MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 898.05ms. Allocated memory was 177.2MB in the beginning and 287.3MB in the end (delta: 110.1MB). Free memory was 110.4MB in the beginning and 154.6MB in the end (delta: -44.2MB). Peak memory consumption was 66.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 240.37ms. Allocated memory is still 287.3MB. Free memory was 154.6MB in the beginning and 91.2MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 557.27ms. Allocated memory is still 287.3MB. Free memory was 91.2MB in the beginning and 166.6MB in the end (delta: -75.5MB). Peak memory consumption was 68.7MB. Max. memory is 8.0GB. * RCFGBuilder took 2595.96ms. Allocated memory was 287.3MB in the beginning and 534.8MB in the end (delta: 247.5MB). Free memory was 166.6MB in the beginning and 380.9MB in the end (delta: -214.3MB). Peak memory consumption was 136.4MB. Max. memory is 8.0GB. * TraceAbstraction took 57951.95ms. Allocated memory was 534.8MB in the beginning and 5.1GB in the end (delta: 4.6GB). Free memory was 380.4MB in the beginning and 3.1GB in the end (delta: -2.7GB). Peak memory consumption was 1.9GB. 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: 42]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 42). Cancelled while NwaCegarLoop was constructing difference of abstraction (109092states) and FLOYD_HOARE automaton (currently 4 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (273 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.9s, OverallIterations: 23, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 41.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9747 SdHoareTripleChecker+Valid, 35.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9747 mSDsluCounter, 13533 SdHoareTripleChecker+Invalid, 30.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1284 mSDsCounter, 6236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30091 IncrementalHoareTripleChecker+Invalid, 36327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6236 mSolverCounterUnsat, 12249 mSDtfsCounter, 30091 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109092occurred in iteration=22, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 43637 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 7232 NumberOfCodeBlocks, 7232 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 7208 ConstructedInterpolants, 0 QuantifiedInterpolants, 12976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 243 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 24 InterpolantComputations, 23 PerfectInterpolantSequences, 7396/7459 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