/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 16:40:21,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 16:40:21,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 16:40:21,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 16:40:21,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 16:40:21,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 16:40:21,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 16:40:21,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 16:40:21,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 16:40:21,707 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 16:40:21,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 16:40:21,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 16:40:21,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 16:40:21,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 16:40:21,709 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 16:40:21,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 16:40:21,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 16:40:21,709 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 16:40:21,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 16:40:21,710 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 16:40:21,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 16:40:21,711 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 16:40:21,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 16:40:21,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 16:40:21,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 16:40:21,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 16:40:21,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 16:40:21,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 16:40:21,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 16:40:21,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 16:40:21,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 16:40:21,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 16:40:21,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 16:40:21,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 16:40:21,898 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 16:40:21,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24.c [2023-12-20 16:40:22,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 16:40:23,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 16:40:23,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label24.c [2023-12-20 16:40:23,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b480cd02a/0306e5e7c3d64fe28f4286d921dd2f0d/FLAG8304db902 [2023-12-20 16:40:23,169 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b480cd02a/0306e5e7c3d64fe28f4286d921dd2f0d [2023-12-20 16:40:23,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 16:40:23,171 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 16:40:23,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 16:40:23,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 16:40:23,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 16:40:23,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ae770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23, skipping insertion in model container [2023-12-20 16:40:23,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 16:40:23,365 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/Problem11_label24.c[7451,7464] [2023-12-20 16:40:23,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 16:40:23,568 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 16:40:23,600 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/Problem11_label24.c[7451,7464] [2023-12-20 16:40:23,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 16:40:23,733 INFO L206 MainTranslator]: Completed translation [2023-12-20 16:40:23,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23 WrapperNode [2023-12-20 16:40:23,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 16:40:23,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 16:40:23,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 16:40:23,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 16:40:23,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,887 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-12-20 16:40:23,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 16:40:23,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 16:40:23,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 16:40:23,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 16:40:23,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,962 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]. [2023-12-20 16:40:23,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:23,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 16:40:24,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 16:40:24,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 16:40:24,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 16:40:24,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (1/1) ... [2023-12-20 16:40:24,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 16:40:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:40:24,074 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) [2023-12-20 16:40:24,088 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 [2023-12-20 16:40:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 16:40:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 16:40:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 16:40:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 16:40:24,151 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 16:40:24,153 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 16:40:25,321 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 16:40:25,363 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 16:40:25,363 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 16:40:25,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:40:25 BoogieIcfgContainer [2023-12-20 16:40:25,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 16:40:25,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 16:40:25,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 16:40:25,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 16:40:25,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 04:40:23" (1/3) ... [2023-12-20 16:40:25,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a548082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:40:25, skipping insertion in model container [2023-12-20 16:40:25,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:40:23" (2/3) ... [2023-12-20 16:40:25,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a548082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:40:25, skipping insertion in model container [2023-12-20 16:40:25,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:40:25" (3/3) ... [2023-12-20 16:40:25,370 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2023-12-20 16:40:25,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 16:40:25,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 16:40:25,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 16:40:25,435 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;@634c1b9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 16:40:25,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 16:40:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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) [2023-12-20 16:40:25,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 16:40:25,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:25,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:25,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:25,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:25,458 INFO L85 PathProgramCache]: Analyzing trace with hash 591959794, now seen corresponding path program 1 times [2023-12-20 16:40:25,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:25,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619865207] [2023-12-20 16:40:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:25,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:25,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:25,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:25,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619865207] [2023-12-20 16:40:25,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619865207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:25,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:25,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:25,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325988185] [2023-12-20 16:40:25,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:25,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 16:40:25,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 16:40:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 16:40:25,642 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-12-20 16:40:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:25,687 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-12-20 16:40:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 16:40:25,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-12-20 16:40:25,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:25,701 INFO L225 Difference]: With dead ends: 441 [2023-12-20 16:40:25,701 INFO L226 Difference]: Without dead ends: 219 [2023-12-20 16:40:25,704 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 [2023-12-20 16:40:25,707 INFO L413 NwaCegarLoop]: 355 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, 355 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 [2023-12-20 16:40:25,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 16:40:25,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-20 16:40:25,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-20 16:40:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 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) [2023-12-20 16:40:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-12-20 16:40:25,742 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 50 [2023-12-20 16:40:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:25,742 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-12-20 16:40:25,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-12-20 16:40:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-12-20 16:40:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 16:40:25,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:25,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:25,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 16:40:25,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:25,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1978295999, now seen corresponding path program 1 times [2023-12-20 16:40:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:25,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225228847] [2023-12-20 16:40:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:25,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225228847] [2023-12-20 16:40:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225228847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:25,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:25,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415111452] [2023-12-20 16:40:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:25,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:25,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:25,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:25,869 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-12-20 16:40:26,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:26,625 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2023-12-20 16:40:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:26,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-12-20 16:40:26,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:26,627 INFO L225 Difference]: With dead ends: 630 [2023-12-20 16:40:26,627 INFO L226 Difference]: Without dead ends: 412 [2023-12-20 16:40:26,628 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 [2023-12-20 16:40:26,629 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 157 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:26,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:40:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-12-20 16:40:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2023-12-20 16:40:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 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) [2023-12-20 16:40:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2023-12-20 16:40:26,643 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 50 [2023-12-20 16:40:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:26,643 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2023-12-20 16:40:26,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-12-20 16:40:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2023-12-20 16:40:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-20 16:40:26,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:26,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:26,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 16:40:26,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:26,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:26,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1138781542, now seen corresponding path program 1 times [2023-12-20 16:40:26,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:26,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620150763] [2023-12-20 16:40:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:26,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:26,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620150763] [2023-12-20 16:40:26,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620150763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:26,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:26,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:26,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235218514] [2023-12-20 16:40:26,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:26,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:26,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:26,867 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2023-12-20 16:40:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:27,429 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2023-12-20 16:40:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:27,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2023-12-20 16:40:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:27,434 INFO L225 Difference]: With dead ends: 1208 [2023-12-20 16:40:27,434 INFO L226 Difference]: Without dead ends: 799 [2023-12-20 16:40:27,435 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 [2023-12-20 16:40:27,436 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:27,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-12-20 16:40:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2023-12-20 16:40:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 785 states have internal predecessors, (1088), 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) [2023-12-20 16:40:27,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1088 transitions. [2023-12-20 16:40:27,451 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1088 transitions. Word has length 118 [2023-12-20 16:40:27,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:27,451 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1088 transitions. [2023-12-20 16:40:27,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2023-12-20 16:40:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1088 transitions. [2023-12-20 16:40:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 16:40:27,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:27,453 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:27,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 16:40:27,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:27,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash 762617738, now seen corresponding path program 1 times [2023-12-20 16:40:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:27,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474658024] [2023-12-20 16:40:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:27,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:27,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:27,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474658024] [2023-12-20 16:40:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474658024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:27,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:27,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:27,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327434033] [2023-12-20 16:40:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:27,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:27,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:27,653 INFO L87 Difference]: Start difference. First operand 786 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-12-20 16:40:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:28,236 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2023-12-20 16:40:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:28,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2023-12-20 16:40:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:28,240 INFO L225 Difference]: With dead ends: 1941 [2023-12-20 16:40:28,240 INFO L226 Difference]: Without dead ends: 1156 [2023-12-20 16:40:28,241 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 [2023-12-20 16:40:28,242 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:28,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:28,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-12-20 16:40:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2023-12-20 16:40:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2781629116117852) internal successors, (1475), 1154 states have internal predecessors, (1475), 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) [2023-12-20 16:40:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1475 transitions. [2023-12-20 16:40:28,257 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1475 transitions. Word has length 119 [2023-12-20 16:40:28,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:28,258 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1475 transitions. [2023-12-20 16:40:28,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-12-20 16:40:28,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1475 transitions. [2023-12-20 16:40:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-20 16:40:28,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:28,260 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:28,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 16:40:28,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:28,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:28,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1330280610, now seen corresponding path program 1 times [2023-12-20 16:40:28,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:28,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075784570] [2023-12-20 16:40:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:28,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:28,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:28,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075784570] [2023-12-20 16:40:28,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075784570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:28,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:28,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:28,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625264057] [2023-12-20 16:40:28,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:28,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:28,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:28,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:28,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:28,435 INFO L87 Difference]: Start difference. First operand 1155 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-12-20 16:40:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:29,038 INFO L93 Difference]: Finished difference Result 2690 states and 3514 transitions. [2023-12-20 16:40:29,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:29,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2023-12-20 16:40:29,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:29,045 INFO L225 Difference]: With dead ends: 2690 [2023-12-20 16:40:29,045 INFO L226 Difference]: Without dead ends: 1720 [2023-12-20 16:40:29,046 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 [2023-12-20 16:40:29,049 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 155 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:29,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:29,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-12-20 16:40:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2023-12-20 16:40:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.261467889908257) internal successors, (1925), 1526 states have internal predecessors, (1925), 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) [2023-12-20 16:40:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1925 transitions. [2023-12-20 16:40:29,076 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1925 transitions. Word has length 162 [2023-12-20 16:40:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:29,077 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 1925 transitions. [2023-12-20 16:40:29,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-12-20 16:40:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1925 transitions. [2023-12-20 16:40:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-20 16:40:29,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:29,081 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:29,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 16:40:29,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:29,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1168583027, now seen corresponding path program 1 times [2023-12-20 16:40:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:29,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217964502] [2023-12-20 16:40:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:29,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217964502] [2023-12-20 16:40:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217964502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:29,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:29,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910842925] [2023-12-20 16:40:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:29,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:29,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:29,195 INFO L87 Difference]: Start difference. First operand 1527 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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) [2023-12-20 16:40:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:29,752 INFO L93 Difference]: Finished difference Result 4157 states and 5315 transitions. [2023-12-20 16:40:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:29,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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 177 [2023-12-20 16:40:29,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:29,759 INFO L225 Difference]: With dead ends: 4157 [2023-12-20 16:40:29,759 INFO L226 Difference]: Without dead ends: 2631 [2023-12-20 16:40:29,770 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 [2023-12-20 16:40:29,771 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:29,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-12-20 16:40:29,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2447. [2023-12-20 16:40:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2446 states have (on average 1.2174979558462797) internal successors, (2978), 2446 states have internal predecessors, (2978), 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) [2023-12-20 16:40:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 2978 transitions. [2023-12-20 16:40:29,799 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 2978 transitions. Word has length 177 [2023-12-20 16:40:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:29,799 INFO L495 AbstractCegarLoop]: Abstraction has 2447 states and 2978 transitions. [2023-12-20 16:40:29,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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) [2023-12-20 16:40:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 2978 transitions. [2023-12-20 16:40:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-20 16:40:29,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:29,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:29,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 16:40:29,801 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:29,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:29,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1296370387, now seen corresponding path program 1 times [2023-12-20 16:40:29,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:29,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082984343] [2023-12-20 16:40:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:29,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-20 16:40:29,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:29,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082984343] [2023-12-20 16:40:29,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082984343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:29,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:29,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:29,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192266854] [2023-12-20 16:40:29,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:29,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:29,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:29,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:29,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:29,919 INFO L87 Difference]: Start difference. First operand 2447 states and 2978 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2023-12-20 16:40:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:30,425 INFO L93 Difference]: Finished difference Result 5451 states and 6619 transitions. [2023-12-20 16:40:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:30,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 193 [2023-12-20 16:40:30,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:30,433 INFO L225 Difference]: With dead ends: 5451 [2023-12-20 16:40:30,433 INFO L226 Difference]: Without dead ends: 3005 [2023-12-20 16:40:30,436 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 [2023-12-20 16:40:30,437 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 75 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:30,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 152 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2023-12-20 16:40:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 3004. [2023-12-20 16:40:30,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 3003 states have (on average 1.2114552114552115) internal successors, (3638), 3003 states have internal predecessors, (3638), 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) [2023-12-20 16:40:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3638 transitions. [2023-12-20 16:40:30,475 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3638 transitions. Word has length 193 [2023-12-20 16:40:30,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:30,475 INFO L495 AbstractCegarLoop]: Abstraction has 3004 states and 3638 transitions. [2023-12-20 16:40:30,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2023-12-20 16:40:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3638 transitions. [2023-12-20 16:40:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 16:40:30,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:30,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:30,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 16:40:30,478 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:30,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:30,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2055939193, now seen corresponding path program 1 times [2023-12-20 16:40:30,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880612064] [2023-12-20 16:40:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:30,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:30,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:30,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880612064] [2023-12-20 16:40:30,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880612064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:30,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:30,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:40:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789621455] [2023-12-20 16:40:30,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:30,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:40:30,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:40:30,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:40:30,833 INFO L87 Difference]: Start difference. First operand 3004 states and 3638 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-12-20 16:40:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:31,944 INFO L93 Difference]: Finished difference Result 8782 states and 10794 transitions. [2023-12-20 16:40:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:40:31,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231 [2023-12-20 16:40:31,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:31,959 INFO L225 Difference]: With dead ends: 8782 [2023-12-20 16:40:31,959 INFO L226 Difference]: Without dead ends: 5779 [2023-12-20 16:40:31,962 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 [2023-12-20 16:40:31,963 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 324 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:31,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 115 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 16:40:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2023-12-20 16:40:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5403. [2023-12-20 16:40:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5402 states have (on average 1.2121436504998149) internal successors, (6548), 5402 states have internal predecessors, (6548), 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) [2023-12-20 16:40:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 6548 transitions. [2023-12-20 16:40:32,041 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 6548 transitions. Word has length 231 [2023-12-20 16:40:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:32,041 INFO L495 AbstractCegarLoop]: Abstraction has 5403 states and 6548 transitions. [2023-12-20 16:40:32,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-12-20 16:40:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 6548 transitions. [2023-12-20 16:40:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-20 16:40:32,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:32,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:32,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 16:40:32,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:32,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1881508430, now seen corresponding path program 1 times [2023-12-20 16:40:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835193064] [2023-12-20 16:40:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-20 16:40:32,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:32,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835193064] [2023-12-20 16:40:32,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835193064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:32,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:32,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:32,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691337118] [2023-12-20 16:40:32,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:32,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:32,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:32,189 INFO L87 Difference]: Start difference. First operand 5403 states and 6548 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-20 16:40:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:32,829 INFO L93 Difference]: Finished difference Result 11918 states and 14622 transitions. [2023-12-20 16:40:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:32,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 232 [2023-12-20 16:40:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:32,847 INFO L225 Difference]: With dead ends: 11918 [2023-12-20 16:40:32,847 INFO L226 Difference]: Without dead ends: 6884 [2023-12-20 16:40:32,851 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 [2023-12-20 16:40:32,853 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 146 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:32,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 387 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:32,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2023-12-20 16:40:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6691. [2023-12-20 16:40:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6690 states have (on average 1.1928251121076232) internal successors, (7980), 6690 states have internal predecessors, (7980), 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) [2023-12-20 16:40:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 7980 transitions. [2023-12-20 16:40:32,945 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 7980 transitions. Word has length 232 [2023-12-20 16:40:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:32,946 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 7980 transitions. [2023-12-20 16:40:32,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-20 16:40:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 7980 transitions. [2023-12-20 16:40:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-20 16:40:32,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:32,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:32,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 16:40:32,949 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:32,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash -245237584, now seen corresponding path program 1 times [2023-12-20 16:40:32,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:32,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370510784] [2023-12-20 16:40:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:33,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:33,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370510784] [2023-12-20 16:40:33,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370510784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:33,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:33,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:33,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502403640] [2023-12-20 16:40:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:33,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:40:33,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:40:33,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:40:33,166 INFO L87 Difference]: Start difference. First operand 6691 states and 7980 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-12-20 16:40:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:34,280 INFO L93 Difference]: Finished difference Result 14860 states and 17818 transitions. [2023-12-20 16:40:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:40:34,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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 242 [2023-12-20 16:40:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:34,300 INFO L225 Difference]: With dead ends: 14860 [2023-12-20 16:40:34,300 INFO L226 Difference]: Without dead ends: 8538 [2023-12-20 16:40:34,314 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 [2023-12-20 16:40:34,314 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 239 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:34,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 142 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 16:40:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2023-12-20 16:40:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 8533. [2023-12-20 16:40:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8533 states, 8532 states have (on average 1.1736990154711673) internal successors, (10014), 8532 states have internal predecessors, (10014), 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) [2023-12-20 16:40:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 10014 transitions. [2023-12-20 16:40:34,427 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 10014 transitions. Word has length 242 [2023-12-20 16:40:34,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:34,428 INFO L495 AbstractCegarLoop]: Abstraction has 8533 states and 10014 transitions. [2023-12-20 16:40:34,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-12-20 16:40:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 10014 transitions. [2023-12-20 16:40:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-12-20 16:40:34,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:34,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:34,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 16:40:34,432 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:34,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:34,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1908228992, now seen corresponding path program 1 times [2023-12-20 16:40:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:34,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325737605] [2023-12-20 16:40:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-12-20 16:40:34,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:34,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325737605] [2023-12-20 16:40:34,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325737605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:34,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:34,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049989104] [2023-12-20 16:40:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:34,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:34,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:34,613 INFO L87 Difference]: Start difference. First operand 8533 states and 10014 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-20 16:40:35,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:35,228 INFO L93 Difference]: Finished difference Result 18739 states and 22055 transitions. [2023-12-20 16:40:35,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:35,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 252 [2023-12-20 16:40:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:35,252 INFO L225 Difference]: With dead ends: 18739 [2023-12-20 16:40:35,252 INFO L226 Difference]: Without dead ends: 10575 [2023-12-20 16:40:35,261 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 [2023-12-20 16:40:35,262 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 150 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:35,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 188 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2023-12-20 16:40:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 10189. [2023-12-20 16:40:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10188 states have (on average 1.1690223792697292) internal successors, (11910), 10188 states have internal predecessors, (11910), 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) [2023-12-20 16:40:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 11910 transitions. [2023-12-20 16:40:35,378 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 11910 transitions. Word has length 252 [2023-12-20 16:40:35,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:35,379 INFO L495 AbstractCegarLoop]: Abstraction has 10189 states and 11910 transitions. [2023-12-20 16:40:35,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-12-20 16:40:35,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 11910 transitions. [2023-12-20 16:40:35,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-20 16:40:35,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:35,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:35,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 16:40:35,383 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:35,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2119643857, now seen corresponding path program 1 times [2023-12-20 16:40:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:35,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816084393] [2023-12-20 16:40:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-20 16:40:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:35,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816084393] [2023-12-20 16:40:35,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816084393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:35,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:35,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413470929] [2023-12-20 16:40:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:35,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:35,543 INFO L87 Difference]: Start difference. First operand 10189 states and 11910 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2023-12-20 16:40:36,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:36,175 INFO L93 Difference]: Finished difference Result 20566 states and 24032 transitions. [2023-12-20 16:40:36,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:36,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 280 [2023-12-20 16:40:36,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:36,190 INFO L225 Difference]: With dead ends: 20566 [2023-12-20 16:40:36,190 INFO L226 Difference]: Without dead ends: 10562 [2023-12-20 16:40:36,200 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 [2023-12-20 16:40:36,200 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 150 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:36,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2023-12-20 16:40:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 10556. [2023-12-20 16:40:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10556 states, 10555 states have (on average 1.139933680720038) internal successors, (12032), 10555 states have internal predecessors, (12032), 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) [2023-12-20 16:40:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10556 states to 10556 states and 12032 transitions. [2023-12-20 16:40:36,309 INFO L78 Accepts]: Start accepts. Automaton has 10556 states and 12032 transitions. Word has length 280 [2023-12-20 16:40:36,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:36,310 INFO L495 AbstractCegarLoop]: Abstraction has 10556 states and 12032 transitions. [2023-12-20 16:40:36,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2023-12-20 16:40:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10556 states and 12032 transitions. [2023-12-20 16:40:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-20 16:40:36,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:36,316 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-12-20 16:40:36,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 16:40:36,316 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:36,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:36,317 INFO L85 PathProgramCache]: Analyzing trace with hash 609765629, now seen corresponding path program 1 times [2023-12-20 16:40:36,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:36,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483062785] [2023-12-20 16:40:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:36,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-20 16:40:36,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:36,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483062785] [2023-12-20 16:40:36,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483062785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:36,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:36,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895034237] [2023-12-20 16:40:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:36,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:36,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:36,523 INFO L87 Difference]: Start difference. First operand 10556 states and 12032 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-12-20 16:40:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:37,102 INFO L93 Difference]: Finished difference Result 23885 states and 27409 transitions. [2023-12-20 16:40:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 313 [2023-12-20 16:40:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:37,122 INFO L225 Difference]: With dead ends: 23885 [2023-12-20 16:40:37,122 INFO L226 Difference]: Without dead ends: 13698 [2023-12-20 16:40:37,131 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 [2023-12-20 16:40:37,132 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 141 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:37,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 133 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13698 states. [2023-12-20 16:40:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13698 to 13693. [2023-12-20 16:40:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 13692 states have (on average 1.1337277242185217) internal successors, (15523), 13692 states have internal predecessors, (15523), 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) [2023-12-20 16:40:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 15523 transitions. [2023-12-20 16:40:37,313 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 15523 transitions. Word has length 313 [2023-12-20 16:40:37,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:37,313 INFO L495 AbstractCegarLoop]: Abstraction has 13693 states and 15523 transitions. [2023-12-20 16:40:37,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-12-20 16:40:37,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 15523 transitions. [2023-12-20 16:40:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-20 16:40:37,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:37,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:37,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 16:40:37,321 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:37,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash -891213812, now seen corresponding path program 1 times [2023-12-20 16:40:37,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:37,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16975736] [2023-12-20 16:40:37,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:37,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-20 16:40:37,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:37,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16975736] [2023-12-20 16:40:37,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16975736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:37,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:37,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:37,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259923081] [2023-12-20 16:40:37,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:37,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:37,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:37,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:37,569 INFO L87 Difference]: Start difference. First operand 13693 states and 15523 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-12-20 16:40:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:38,227 INFO L93 Difference]: Finished difference Result 30516 states and 34552 transitions. [2023-12-20 16:40:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 [2023-12-20 16:40:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:38,252 INFO L225 Difference]: With dead ends: 30516 [2023-12-20 16:40:38,252 INFO L226 Difference]: Without dead ends: 17192 [2023-12-20 16:40:38,265 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 [2023-12-20 16:40:38,265 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 155 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:38,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 71 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17192 states. [2023-12-20 16:40:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17192 to 17189. [2023-12-20 16:40:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17189 states, 17188 states have (on average 1.1226437049104026) internal successors, (19296), 17188 states have internal predecessors, (19296), 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) [2023-12-20 16:40:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17189 states to 17189 states and 19296 transitions. [2023-12-20 16:40:38,493 INFO L78 Accepts]: Start accepts. Automaton has 17189 states and 19296 transitions. Word has length 321 [2023-12-20 16:40:38,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:38,493 INFO L495 AbstractCegarLoop]: Abstraction has 17189 states and 19296 transitions. [2023-12-20 16:40:38,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-12-20 16:40:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 17189 states and 19296 transitions. [2023-12-20 16:40:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-20 16:40:38,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:38,501 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-12-20 16:40:38,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 16:40:38,501 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:38,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2099478148, now seen corresponding path program 1 times [2023-12-20 16:40:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948716387] [2023-12-20 16:40:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:39,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948716387] [2023-12-20 16:40:39,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948716387] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:40:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816593136] [2023-12-20 16:40:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:39,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:40:39,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:40:39,085 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) [2023-12-20 16:40:39,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 16:40:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:39,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 16:40:39,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:40:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-20 16:40:39,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:40:39,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816593136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:39,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:40:39,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 16:40:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656990653] [2023-12-20 16:40:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:39,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:39,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 16:40:39,460 INFO L87 Difference]: Start difference. First operand 17189 states and 19296 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-12-20 16:40:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:40,117 INFO L93 Difference]: Finished difference Result 35503 states and 40038 transitions. [2023-12-20 16:40:40,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:40,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2023-12-20 16:40:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:40,138 INFO L225 Difference]: With dead ends: 35503 [2023-12-20 16:40:40,139 INFO L226 Difference]: Without dead ends: 18683 [2023-12-20 16:40:40,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 16:40:40,152 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 137 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:40,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 356 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:40:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18683 states. [2023-12-20 16:40:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18683 to 18675. [2023-12-20 16:40:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18675 states, 18674 states have (on average 1.121184534647103) internal successors, (20937), 18674 states have internal predecessors, (20937), 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) [2023-12-20 16:40:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18675 states to 18675 states and 20937 transitions. [2023-12-20 16:40:40,327 INFO L78 Accepts]: Start accepts. Automaton has 18675 states and 20937 transitions. Word has length 323 [2023-12-20 16:40:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:40,328 INFO L495 AbstractCegarLoop]: Abstraction has 18675 states and 20937 transitions. [2023-12-20 16:40:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-12-20 16:40:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 18675 states and 20937 transitions. [2023-12-20 16:40:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-20 16:40:40,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:40,334 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-12-20 16:40:40,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 16:40:40,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-20 16:40:40,542 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:40,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1515679309, now seen corresponding path program 1 times [2023-12-20 16:40:40,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:40,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101650384] [2023-12-20 16:40:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:40,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-20 16:40:40,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:40,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101650384] [2023-12-20 16:40:40,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101650384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:40,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:40,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366198993] [2023-12-20 16:40:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:40,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:40,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:40,725 INFO L87 Difference]: Start difference. First operand 18675 states and 20937 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-12-20 16:40:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:41,323 INFO L93 Difference]: Finished difference Result 40108 states and 44935 transitions. [2023-12-20 16:40:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:41,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 325 [2023-12-20 16:40:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:41,346 INFO L225 Difference]: With dead ends: 40108 [2023-12-20 16:40:41,346 INFO L226 Difference]: Without dead ends: 21802 [2023-12-20 16:40:41,359 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 [2023-12-20 16:40:41,360 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 167 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:41,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 153 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21802 states. [2023-12-20 16:40:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21802 to 14438. [2023-12-20 16:40:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14438 states, 14437 states have (on average 1.1316062893953038) internal successors, (16337), 14437 states have internal predecessors, (16337), 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) [2023-12-20 16:40:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14438 states to 14438 states and 16337 transitions. [2023-12-20 16:40:41,562 INFO L78 Accepts]: Start accepts. Automaton has 14438 states and 16337 transitions. Word has length 325 [2023-12-20 16:40:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:41,563 INFO L495 AbstractCegarLoop]: Abstraction has 14438 states and 16337 transitions. [2023-12-20 16:40:41,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-12-20 16:40:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 14438 states and 16337 transitions. [2023-12-20 16:40:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-20 16:40:41,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:41,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-12-20 16:40:41,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 16:40:41,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:41,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 418456856, now seen corresponding path program 1 times [2023-12-20 16:40:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212148216] [2023-12-20 16:40:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-20 16:40:41,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212148216] [2023-12-20 16:40:41,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212148216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:41,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:41,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:40:41,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946696420] [2023-12-20 16:40:41,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:41,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:41,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:41,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:41,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:41,736 INFO L87 Difference]: Start difference. First operand 14438 states and 16337 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:40:42,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:42,067 INFO L93 Difference]: Finished difference Result 28499 states and 32285 transitions. [2023-12-20 16:40:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:42,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2023-12-20 16:40:42,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:42,079 INFO L225 Difference]: With dead ends: 28499 [2023-12-20 16:40:42,080 INFO L226 Difference]: Without dead ends: 14430 [2023-12-20 16:40:42,087 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 [2023-12-20 16:40:42,087 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:42,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 38 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 16:40:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14430 states. [2023-12-20 16:40:42,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14430 to 14427. [2023-12-20 16:40:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14426 states have (on average 1.1309441286565922) internal successors, (16315), 14426 states have internal predecessors, (16315), 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) [2023-12-20 16:40:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 16315 transitions. [2023-12-20 16:40:42,213 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 16315 transitions. Word has length 332 [2023-12-20 16:40:42,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:42,213 INFO L495 AbstractCegarLoop]: Abstraction has 14427 states and 16315 transitions. [2023-12-20 16:40:42,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:40:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 16315 transitions. [2023-12-20 16:40:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-12-20 16:40:42,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:42,219 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:42,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 16:40:42,219 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:42,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1811259153, now seen corresponding path program 1 times [2023-12-20 16:40:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120840761] [2023-12-20 16:40:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-20 16:40:42,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:42,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120840761] [2023-12-20 16:40:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120840761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:42,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:42,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956944817] [2023-12-20 16:40:42,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:42,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:42,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:42,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:42,457 INFO L87 Difference]: Start difference. First operand 14427 states and 16315 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-12-20 16:40:43,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:43,067 INFO L93 Difference]: Finished difference Result 32349 states and 36462 transitions. [2023-12-20 16:40:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:43,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 356 [2023-12-20 16:40:43,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:43,084 INFO L225 Difference]: With dead ends: 32349 [2023-12-20 16:40:43,084 INFO L226 Difference]: Without dead ends: 16447 [2023-12-20 16:40:43,095 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 [2023-12-20 16:40:43,095 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 150 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:43,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 306 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16447 states. [2023-12-20 16:40:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16447 to 14051. [2023-12-20 16:40:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 14050 states have (on average 1.0952313167259786) internal successors, (15388), 14050 states have internal predecessors, (15388), 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) [2023-12-20 16:40:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15388 transitions. [2023-12-20 16:40:43,232 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15388 transitions. Word has length 356 [2023-12-20 16:40:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:43,232 INFO L495 AbstractCegarLoop]: Abstraction has 14051 states and 15388 transitions. [2023-12-20 16:40:43,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-12-20 16:40:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15388 transitions. [2023-12-20 16:40:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-12-20 16:40:43,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:43,239 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:43,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 16:40:43,239 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:43,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:43,240 INFO L85 PathProgramCache]: Analyzing trace with hash -494330591, now seen corresponding path program 1 times [2023-12-20 16:40:43,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:43,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786157396] [2023-12-20 16:40:43,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:43,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-20 16:40:43,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:43,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786157396] [2023-12-20 16:40:43,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786157396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:43,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:43,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:40:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769169442] [2023-12-20 16:40:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:43,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:40:43,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:43,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:40:43,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:40:43,740 INFO L87 Difference]: Start difference. First operand 14051 states and 15388 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 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) [2023-12-20 16:40:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:44,657 INFO L93 Difference]: Finished difference Result 28840 states and 31558 transitions. [2023-12-20 16:40:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:40:44,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 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 357 [2023-12-20 16:40:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:44,671 INFO L225 Difference]: With dead ends: 28840 [2023-12-20 16:40:44,671 INFO L226 Difference]: Without dead ends: 15158 [2023-12-20 16:40:44,679 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 [2023-12-20 16:40:44,680 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 301 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:44,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 115 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 16:40:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15158 states. [2023-12-20 16:40:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15158 to 14235. [2023-12-20 16:40:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14235 states, 14234 states have (on average 1.0942812982998456) internal successors, (15576), 14234 states have internal predecessors, (15576), 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) [2023-12-20 16:40:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14235 states to 14235 states and 15576 transitions. [2023-12-20 16:40:44,799 INFO L78 Accepts]: Start accepts. Automaton has 14235 states and 15576 transitions. Word has length 357 [2023-12-20 16:40:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:44,799 INFO L495 AbstractCegarLoop]: Abstraction has 14235 states and 15576 transitions. [2023-12-20 16:40:44,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 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) [2023-12-20 16:40:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 14235 states and 15576 transitions. [2023-12-20 16:40:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-12-20 16:40:44,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:44,804 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:40:44,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 16:40:44,805 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:44,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1810272138, now seen corresponding path program 1 times [2023-12-20 16:40:44,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:44,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077246154] [2023-12-20 16:40:44,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:44,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-20 16:40:45,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:45,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077246154] [2023-12-20 16:40:45,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077246154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:45,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:45,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:45,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101689706] [2023-12-20 16:40:45,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:45,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:40:45,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:40:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:40:45,078 INFO L87 Difference]: Start difference. First operand 14235 states and 15576 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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) [2023-12-20 16:40:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:45,959 INFO L93 Difference]: Finished difference Result 36218 states and 39626 transitions. [2023-12-20 16:40:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:40:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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 371 [2023-12-20 16:40:45,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:45,981 INFO L225 Difference]: With dead ends: 36218 [2023-12-20 16:40:45,982 INFO L226 Difference]: Without dead ends: 21800 [2023-12-20 16:40:45,992 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 [2023-12-20 16:40:45,993 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 229 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:45,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 68 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 16:40:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21800 states. [2023-12-20 16:40:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21800 to 20505. [2023-12-20 16:40:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20505 states, 20504 states have (on average 1.0909090909090908) internal successors, (22368), 20504 states have internal predecessors, (22368), 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) [2023-12-20 16:40:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20505 states to 20505 states and 22368 transitions. [2023-12-20 16:40:46,175 INFO L78 Accepts]: Start accepts. Automaton has 20505 states and 22368 transitions. Word has length 371 [2023-12-20 16:40:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:46,176 INFO L495 AbstractCegarLoop]: Abstraction has 20505 states and 22368 transitions. [2023-12-20 16:40:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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) [2023-12-20 16:40:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 20505 states and 22368 transitions. [2023-12-20 16:40:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-20 16:40:46,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:46,182 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:46,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 16:40:46,182 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:46,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:46,182 INFO L85 PathProgramCache]: Analyzing trace with hash -686072556, now seen corresponding path program 1 times [2023-12-20 16:40:46,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:46,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592990766] [2023-12-20 16:40:46,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:46,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-20 16:40:46,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592990766] [2023-12-20 16:40:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592990766] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:40:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777916388] [2023-12-20 16:40:46,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:46,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:40:46,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:40:46,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:40:46,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 16:40:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:46,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 16:40:46,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:40:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:47,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:40:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:40:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777916388] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:40:49,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:40:49,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2023-12-20 16:40:49,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427507413] [2023-12-20 16:40:49,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:40:49,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 16:40:49,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:49,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 16:40:49,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-20 16:40:49,723 INFO L87 Difference]: Start difference. First operand 20505 states and 22368 transitions. Second operand has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 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) [2023-12-20 16:40:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:55,492 INFO L93 Difference]: Finished difference Result 61383 states and 66612 transitions. [2023-12-20 16:40:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-20 16:40:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2023-12-20 16:40:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:55,533 INFO L225 Difference]: With dead ends: 61383 [2023-12-20 16:40:55,534 INFO L226 Difference]: Without dead ends: 40509 [2023-12-20 16:40:55,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1176, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 16:40:55,552 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 4568 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 7620 mSolverCounterSat, 1489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 9109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1489 IncrementalHoareTripleChecker+Valid, 7620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:55,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 205 Invalid, 9109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1489 Valid, 7620 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-20 16:40:55,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40509 states. [2023-12-20 16:40:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40509 to 35613. [2023-12-20 16:40:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35613 states, 35612 states have (on average 1.0764068291587106) internal successors, (38333), 35612 states have internal predecessors, (38333), 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) [2023-12-20 16:40:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35613 states to 35613 states and 38333 transitions. [2023-12-20 16:40:55,998 INFO L78 Accepts]: Start accepts. Automaton has 35613 states and 38333 transitions. Word has length 388 [2023-12-20 16:40:55,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:55,998 INFO L495 AbstractCegarLoop]: Abstraction has 35613 states and 38333 transitions. [2023-12-20 16:40:55,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 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) [2023-12-20 16:40:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 35613 states and 38333 transitions. [2023-12-20 16:40:56,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-20 16:40:56,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:56,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:56,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 16:40:56,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-20 16:40:56,212 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:56,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash 46863823, now seen corresponding path program 1 times [2023-12-20 16:40:56,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:56,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84738867] [2023-12-20 16:40:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:56,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-20 16:40:56,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:56,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84738867] [2023-12-20 16:40:56,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84738867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:56,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:56,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:56,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26480965] [2023-12-20 16:40:56,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:56,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:40:56,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:56,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:40:56,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:40:56,583 INFO L87 Difference]: Start difference. First operand 35613 states and 38333 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-12-20 16:40:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:57,827 INFO L93 Difference]: Finished difference Result 72892 states and 78532 transitions. [2023-12-20 16:40:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:40:57,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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 393 [2023-12-20 16:40:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:57,873 INFO L225 Difference]: With dead ends: 72892 [2023-12-20 16:40:57,873 INFO L226 Difference]: Without dead ends: 37648 [2023-12-20 16:40:57,898 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 [2023-12-20 16:40:57,899 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 223 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:57,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 95 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:40:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37648 states. [2023-12-20 16:40:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37648 to 33761. [2023-12-20 16:40:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 1.0759774881516588) internal successors, (36325), 33760 states have internal predecessors, (36325), 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) [2023-12-20 16:40:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 36325 transitions. [2023-12-20 16:40:58,313 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 36325 transitions. Word has length 393 [2023-12-20 16:40:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:40:58,313 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 36325 transitions. [2023-12-20 16:40:58,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-12-20 16:40:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 36325 transitions. [2023-12-20 16:40:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-12-20 16:40:58,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:40:58,322 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-20 16:40:58,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 16:40:58,322 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:40:58,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:40:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1096975318, now seen corresponding path program 1 times [2023-12-20 16:40:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:40:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696163169] [2023-12-20 16:40:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:40:58,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:40:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:40:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-20 16:40:58,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:40:58,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696163169] [2023-12-20 16:40:58,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696163169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:40:58,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:40:58,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:40:58,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399160909] [2023-12-20 16:40:58,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:40:58,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:40:58,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:40:58,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:40:58,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:40:58,812 INFO L87 Difference]: Start difference. First operand 33761 states and 36325 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-12-20 16:40:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:40:59,539 INFO L93 Difference]: Finished difference Result 69173 states and 74441 transitions. [2023-12-20 16:40:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:40:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 433 [2023-12-20 16:40:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:40:59,577 INFO L225 Difference]: With dead ends: 69173 [2023-12-20 16:40:59,577 INFO L226 Difference]: Without dead ends: 35781 [2023-12-20 16:40:59,597 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 [2023-12-20 16:40:59,597 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 156 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:40:59,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 313 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:40:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35781 states. [2023-12-20 16:40:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35781 to 29519. [2023-12-20 16:40:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29519 states, 29518 states have (on average 1.0707703773968427) internal successors, (31607), 29518 states have internal predecessors, (31607), 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) [2023-12-20 16:41:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29519 states to 29519 states and 31607 transitions. [2023-12-20 16:41:00,010 INFO L78 Accepts]: Start accepts. Automaton has 29519 states and 31607 transitions. Word has length 433 [2023-12-20 16:41:00,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:00,010 INFO L495 AbstractCegarLoop]: Abstraction has 29519 states and 31607 transitions. [2023-12-20 16:41:00,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-12-20 16:41:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 29519 states and 31607 transitions. [2023-12-20 16:41:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2023-12-20 16:41:00,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:00,019 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:00,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 16:41:00,019 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:00,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash -554252170, now seen corresponding path program 1 times [2023-12-20 16:41:00,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:00,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127025678] [2023-12-20 16:41:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-12-20 16:41:00,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:00,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127025678] [2023-12-20 16:41:00,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127025678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:00,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:41:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484434732] [2023-12-20 16:41:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:00,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:41:00,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:41:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:41:00,413 INFO L87 Difference]: Start difference. First operand 29519 states and 31607 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-12-20 16:41:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:01,069 INFO L93 Difference]: Finished difference Result 57757 states and 61912 transitions. [2023-12-20 16:41:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:41:01,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 467 [2023-12-20 16:41:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:01,099 INFO L225 Difference]: With dead ends: 57757 [2023-12-20 16:41:01,100 INFO L226 Difference]: Without dead ends: 30815 [2023-12-20 16:41:01,119 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 [2023-12-20 16:41:01,119 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 133 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:01,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 109 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:41:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30815 states. [2023-12-20 16:41:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30815 to 29151. [2023-12-20 16:41:01,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29151 states, 29150 states have (on average 1.0702229845626072) internal successors, (31197), 29150 states have internal predecessors, (31197), 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) [2023-12-20 16:41:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29151 states to 29151 states and 31197 transitions. [2023-12-20 16:41:01,530 INFO L78 Accepts]: Start accepts. Automaton has 29151 states and 31197 transitions. Word has length 467 [2023-12-20 16:41:01,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:01,530 INFO L495 AbstractCegarLoop]: Abstraction has 29151 states and 31197 transitions. [2023-12-20 16:41:01,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-12-20 16:41:01,530 INFO L276 IsEmpty]: Start isEmpty. Operand 29151 states and 31197 transitions. [2023-12-20 16:41:01,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-12-20 16:41:01,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:01,538 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:01,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 16:41:01,539 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:01,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash 134183705, now seen corresponding path program 1 times [2023-12-20 16:41:01,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:01,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751089266] [2023-12-20 16:41:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-20 16:41:02,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:02,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751089266] [2023-12-20 16:41:02,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751089266] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:41:02,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755662861] [2023-12-20 16:41:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:02,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:41:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:41:02,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:41:02,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 16:41:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:02,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-20 16:41:02,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:41:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-20 16:41:02,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:41:02,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755662861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:02,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:41:02,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 16:41:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642888076] [2023-12-20 16:41:02,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:02,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:41:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:41:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:41:02,342 INFO L87 Difference]: Start difference. First operand 29151 states and 31197 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) [2023-12-20 16:41:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:02,897 INFO L93 Difference]: Finished difference Result 55909 states and 59880 transitions. [2023-12-20 16:41:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:41:02,897 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 471 [2023-12-20 16:41:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:02,925 INFO L225 Difference]: With dead ends: 55909 [2023-12-20 16:41:02,925 INFO L226 Difference]: Without dead ends: 28781 [2023-12-20 16:41:02,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:41:02,943 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 119 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:02,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 161 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 16:41:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28781 states. [2023-12-20 16:41:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28781 to 28045. [2023-12-20 16:41:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28045 states, 28044 states have (on average 1.0686064755384397) internal successors, (29968), 28044 states have internal predecessors, (29968), 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) [2023-12-20 16:41:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28045 states to 28045 states and 29968 transitions. [2023-12-20 16:41:03,304 INFO L78 Accepts]: Start accepts. Automaton has 28045 states and 29968 transitions. Word has length 471 [2023-12-20 16:41:03,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:03,305 INFO L495 AbstractCegarLoop]: Abstraction has 28045 states and 29968 transitions. [2023-12-20 16:41:03,305 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) [2023-12-20 16:41:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand 28045 states and 29968 transitions. [2023-12-20 16:41:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2023-12-20 16:41:03,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:03,314 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:03,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 16:41:03,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:41:03,515 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:03,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash -482671289, now seen corresponding path program 1 times [2023-12-20 16:41:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:03,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375628024] [2023-12-20 16:41:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-20 16:41:04,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:04,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375628024] [2023-12-20 16:41:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375628024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:04,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:04,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 16:41:04,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282944602] [2023-12-20 16:41:04,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:04,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 16:41:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:04,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 16:41:04,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 16:41:04,448 INFO L87 Difference]: Start difference. First operand 28045 states and 29968 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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) [2023-12-20 16:41:05,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:05,733 INFO L93 Difference]: Finished difference Result 59020 states and 63048 transitions. [2023-12-20 16:41:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 16:41:05,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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 522 [2023-12-20 16:41:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:05,766 INFO L225 Difference]: With dead ends: 59020 [2023-12-20 16:41:05,766 INFO L226 Difference]: Without dead ends: 33368 [2023-12-20 16:41:05,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-20 16:41:05,782 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 285 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:05,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 174 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 16:41:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33368 states. [2023-12-20 16:41:06,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33368 to 29151. [2023-12-20 16:41:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29151 states, 29150 states have (on average 1.069056603773585) internal successors, (31163), 29150 states have internal predecessors, (31163), 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) [2023-12-20 16:41:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29151 states to 29151 states and 31163 transitions. [2023-12-20 16:41:06,128 INFO L78 Accepts]: Start accepts. Automaton has 29151 states and 31163 transitions. Word has length 522 [2023-12-20 16:41:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:06,128 INFO L495 AbstractCegarLoop]: Abstraction has 29151 states and 31163 transitions. [2023-12-20 16:41:06,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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) [2023-12-20 16:41:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 29151 states and 31163 transitions. [2023-12-20 16:41:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2023-12-20 16:41:06,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:06,141 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:06,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 16:41:06,141 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:06,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash -760686944, now seen corresponding path program 1 times [2023-12-20 16:41:06,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:06,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177363662] [2023-12-20 16:41:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-20 16:41:07,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:07,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177363662] [2023-12-20 16:41:07,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177363662] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:41:07,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797773085] [2023-12-20 16:41:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:07,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:41:07,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:41:07,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:41:07,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 16:41:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:07,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 16:41:07,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:41:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-20 16:41:08,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:41:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-20 16:41:10,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797773085] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:41:10,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:41:10,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2023-12-20 16:41:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537490875] [2023-12-20 16:41:10,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:41:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 16:41:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 16:41:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-20 16:41:10,475 INFO L87 Difference]: Start difference. First operand 29151 states and 31163 transitions. Second operand has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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) [2023-12-20 16:41:13,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:13,760 INFO L93 Difference]: Finished difference Result 62320 states and 66458 transitions. [2023-12-20 16:41:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-20 16:41:13,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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 532 [2023-12-20 16:41:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:13,793 INFO L225 Difference]: With dead ends: 62320 [2023-12-20 16:41:13,793 INFO L226 Difference]: Without dead ends: 28909 [2023-12-20 16:41:13,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1060 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=363, Invalid=969, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 16:41:13,811 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1376 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 3874 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:13,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 152 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3874 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-20 16:41:13,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28909 states. [2023-12-20 16:41:13,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28909 to 14400. [2023-12-20 16:41:13,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14400 states, 14399 states have (on average 1.052295298284603) internal successors, (15152), 14399 states have internal predecessors, (15152), 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) [2023-12-20 16:41:13,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14400 states to 14400 states and 15152 transitions. [2023-12-20 16:41:13,990 INFO L78 Accepts]: Start accepts. Automaton has 14400 states and 15152 transitions. Word has length 532 [2023-12-20 16:41:13,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:13,990 INFO L495 AbstractCegarLoop]: Abstraction has 14400 states and 15152 transitions. [2023-12-20 16:41:13,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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) [2023-12-20 16:41:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 14400 states and 15152 transitions. [2023-12-20 16:41:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2023-12-20 16:41:13,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:13,996 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:14,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 16:41:14,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-20 16:41:14,198 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:14,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1789511769, now seen corresponding path program 1 times [2023-12-20 16:41:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:14,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84614697] [2023-12-20 16:41:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-20 16:41:14,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:14,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84614697] [2023-12-20 16:41:14,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84614697] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:41:14,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047375837] [2023-12-20 16:41:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:14,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:41:14,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:41:14,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:41:14,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 16:41:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:15,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-20 16:41:15,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:41:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-20 16:41:16,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:41:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 527 proven. 69 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-20 16:41:17,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047375837] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:41:17,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:41:17,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-20 16:41:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905127469] [2023-12-20 16:41:17,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:41:17,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 16:41:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:17,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 16:41:17,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:41:17,747 INFO L87 Difference]: Start difference. First operand 14400 states and 15152 transitions. Second operand has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2023-12-20 16:41:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:20,376 INFO L93 Difference]: Finished difference Result 36370 states and 38284 transitions. [2023-12-20 16:41:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 16:41:20,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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 535 [2023-12-20 16:41:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:20,393 INFO L225 Difference]: With dead ends: 36370 [2023-12-20 16:41:20,393 INFO L226 Difference]: Without dead ends: 20499 [2023-12-20 16:41:20,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1063 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:41:20,400 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 1014 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:20,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 172 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 3479 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 16:41:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20499 states. [2023-12-20 16:41:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20499 to 18460. [2023-12-20 16:41:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18460 states, 18459 states have (on average 1.0465897394225039) internal successors, (19319), 18459 states have internal predecessors, (19319), 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) [2023-12-20 16:41:20,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18460 states to 18460 states and 19319 transitions. [2023-12-20 16:41:20,580 INFO L78 Accepts]: Start accepts. Automaton has 18460 states and 19319 transitions. Word has length 535 [2023-12-20 16:41:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:20,580 INFO L495 AbstractCegarLoop]: Abstraction has 18460 states and 19319 transitions. [2023-12-20 16:41:20,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2023-12-20 16:41:20,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18460 states and 19319 transitions. [2023-12-20 16:41:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-12-20 16:41:20,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:20,589 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-12-20 16:41:20,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 16:41:20,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-20 16:41:20,796 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:20,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash -703157061, now seen corresponding path program 1 times [2023-12-20 16:41:20,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:20,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867606522] [2023-12-20 16:41:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:20,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-20 16:41:21,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:21,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867606522] [2023-12-20 16:41:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867606522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:21,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:21,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:41:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119841376] [2023-12-20 16:41:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:21,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:41:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:41:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:41:21,118 INFO L87 Difference]: Start difference. First operand 18460 states and 19319 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-12-20 16:41:21,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:21,592 INFO L93 Difference]: Finished difference Result 33963 states and 35529 transitions. [2023-12-20 16:41:21,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:41:21,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 669 [2023-12-20 16:41:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:21,607 INFO L225 Difference]: With dead ends: 33963 [2023-12-20 16:41:21,607 INFO L226 Difference]: Without dead ends: 15688 [2023-12-20 16:41:21,617 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 [2023-12-20 16:41:21,618 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:21,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 256 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 16:41:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2023-12-20 16:41:21,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 13106. [2023-12-20 16:41:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13106 states, 13105 states have (on average 1.042502861503243) internal successors, (13662), 13105 states have internal predecessors, (13662), 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) [2023-12-20 16:41:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13106 states to 13106 states and 13662 transitions. [2023-12-20 16:41:21,761 INFO L78 Accepts]: Start accepts. Automaton has 13106 states and 13662 transitions. Word has length 669 [2023-12-20 16:41:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:21,761 INFO L495 AbstractCegarLoop]: Abstraction has 13106 states and 13662 transitions. [2023-12-20 16:41:21,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-12-20 16:41:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 13106 states and 13662 transitions. [2023-12-20 16:41:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-12-20 16:41:21,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:21,768 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:21,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 16:41:21,768 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:21,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1309082084, now seen corresponding path program 1 times [2023-12-20 16:41:21,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:21,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15090907] [2023-12-20 16:41:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:21,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 1067 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2023-12-20 16:41:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:21,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15090907] [2023-12-20 16:41:21,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15090907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:21,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:21,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:41:21,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877856799] [2023-12-20 16:41:21,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:21,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:41:21,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:41:21,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:41:21,966 INFO L87 Difference]: Start difference. First operand 13106 states and 13662 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-12-20 16:41:22,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:22,394 INFO L93 Difference]: Finished difference Result 25846 states and 26953 transitions. [2023-12-20 16:41:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:41:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 670 [2023-12-20 16:41:22,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:22,404 INFO L225 Difference]: With dead ends: 25846 [2023-12-20 16:41:22,404 INFO L226 Difference]: Without dead ends: 12741 [2023-12-20 16:41:22,411 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 [2023-12-20 16:41:22,412 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 110 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:22,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 306 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 16:41:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2023-12-20 16:41:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 10898. [2023-12-20 16:41:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10898 states, 10897 states have (on average 1.0387262549325502) internal successors, (11319), 10897 states have internal predecessors, (11319), 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) [2023-12-20 16:41:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10898 states to 10898 states and 11319 transitions. [2023-12-20 16:41:22,514 INFO L78 Accepts]: Start accepts. Automaton has 10898 states and 11319 transitions. Word has length 670 [2023-12-20 16:41:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:22,514 INFO L495 AbstractCegarLoop]: Abstraction has 10898 states and 11319 transitions. [2023-12-20 16:41:22,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-12-20 16:41:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10898 states and 11319 transitions. [2023-12-20 16:41:22,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2023-12-20 16:41:22,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:22,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:22,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 16:41:22,520 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:22,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:22,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1340415964, now seen corresponding path program 1 times [2023-12-20 16:41:22,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:22,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275434815] [2023-12-20 16:41:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:22,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-20 16:41:23,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:23,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275434815] [2023-12-20 16:41:23,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275434815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:23,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:23,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:41:23,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899597459] [2023-12-20 16:41:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:23,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:41:23,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:41:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:41:23,021 INFO L87 Difference]: Start difference. First operand 10898 states and 11319 transitions. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2023-12-20 16:41:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:23,879 INFO L93 Difference]: Finished difference Result 23828 states and 24744 transitions. [2023-12-20 16:41:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:41:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 676 [2023-12-20 16:41:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:23,890 INFO L225 Difference]: With dead ends: 23828 [2023-12-20 16:41:23,890 INFO L226 Difference]: Without dead ends: 13299 [2023-12-20 16:41:23,893 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 [2023-12-20 16:41:23,894 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 229 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:23,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 60 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:41:23,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13299 states. [2023-12-20 16:41:23,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13299 to 9984. [2023-12-20 16:41:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9984 states, 9983 states have (on average 1.0360613042171691) internal successors, (10343), 9983 states have internal predecessors, (10343), 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) [2023-12-20 16:41:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 10343 transitions. [2023-12-20 16:41:23,992 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 10343 transitions. Word has length 676 [2023-12-20 16:41:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:23,993 INFO L495 AbstractCegarLoop]: Abstraction has 9984 states and 10343 transitions. [2023-12-20 16:41:23,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2023-12-20 16:41:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 10343 transitions. [2023-12-20 16:41:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2023-12-20 16:41:23,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:23,998 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:23,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 16:41:23,998 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:23,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1065545791, now seen corresponding path program 1 times [2023-12-20 16:41:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:23,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307240552] [2023-12-20 16:41:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-20 16:41:24,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:24,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307240552] [2023-12-20 16:41:24,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307240552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:24,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:24,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:41:24,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299890777] [2023-12-20 16:41:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:24,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:41:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:41:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:41:24,560 INFO L87 Difference]: Start difference. First operand 9984 states and 10343 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2023-12-20 16:41:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:25,261 INFO L93 Difference]: Finished difference Result 20154 states and 20878 transitions. [2023-12-20 16:41:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:41:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 732 [2023-12-20 16:41:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:25,271 INFO L225 Difference]: With dead ends: 20154 [2023-12-20 16:41:25,271 INFO L226 Difference]: Without dead ends: 10907 [2023-12-20 16:41:25,275 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 [2023-12-20 16:41:25,277 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 234 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:25,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 54 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:41:25,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10907 states. [2023-12-20 16:41:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10907 to 8318. [2023-12-20 16:41:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 1.037393290850066) internal successors, (8628), 8317 states have internal predecessors, (8628), 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) [2023-12-20 16:41:25,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 8628 transitions. [2023-12-20 16:41:25,358 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 8628 transitions. Word has length 732 [2023-12-20 16:41:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:25,358 INFO L495 AbstractCegarLoop]: Abstraction has 8318 states and 8628 transitions. [2023-12-20 16:41:25,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2023-12-20 16:41:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 8628 transitions. [2023-12-20 16:41:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2023-12-20 16:41:25,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:25,364 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:25,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 16:41:25,364 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:25,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1582746863, now seen corresponding path program 1 times [2023-12-20 16:41:25,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:25,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703502920] [2023-12-20 16:41:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:25,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2023-12-20 16:41:25,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:25,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703502920] [2023-12-20 16:41:25,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703502920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:25,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:25,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:41:25,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957329989] [2023-12-20 16:41:25,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:25,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:41:25,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:25,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:41:25,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:41:25,765 INFO L87 Difference]: Start difference. First operand 8318 states and 8628 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-12-20 16:41:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:26,159 INFO L93 Difference]: Finished difference Result 12571 states and 13009 transitions. [2023-12-20 16:41:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:41:26,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 756 [2023-12-20 16:41:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:26,160 INFO L225 Difference]: With dead ends: 12571 [2023-12-20 16:41:26,160 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 16:41:26,163 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 [2023-12-20 16:41:26,164 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 16:41:26,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 17 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 16:41:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 16:41:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 16:41:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-20 16:41:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 16:41:26,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 756 [2023-12-20 16:41:26,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:26,164 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 16:41:26,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-12-20 16:41:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 16:41:26,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 16:41:26,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 16:41:26,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 16:41:26,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 16:41:57,784 WARN L293 SmtUtils]: Spent 31.61s on a formula simplification. DAG size of input: 982 DAG size of output: 1246 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-20 16:42:04,670 WARN L293 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 1246 DAG size of output: 155 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-20 16:42:04,675 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-12-20 16:42:04,675 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,676 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,677 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,678 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,679 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L1038(lines 1038 1054) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,680 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse33 (+ (* ~a29~0 3) (- 554771)))) (let ((.cse32 (+ 115704 (div .cse33 25))) (.cse9 (<= ~a25~0 10)) (.cse17 (<= ~a29~0 130)) (.cse23 (< ~a23~0 307)) (.cse12 (= ~a25~0 12))) (let ((.cse11 (<= 260 ~a29~0)) (.cse7 (<= 130 ~a29~0)) (.cse24 (or .cse23 (not .cse12) (< ~a29~0 278))) (.cse4 (= ~a25~0 10)) (.cse10 (<= 246 ~a29~0)) (.cse5 (<= ~a23~0 247)) (.cse18 (<= ~a29~0 274)) (.cse20 (= ~a25~0 13)) (.cse26 (<= ~a29~0 140)) (.cse27 (or (and .cse9 .cse17) (and .cse12 .cse17))) (.cse22 (<= ~a23~0 312)) (.cse21 (<= 0 (+ ~a23~0 42))) (.cse0 (<= ~a23~0 599997)) (.cse25 (<= 21782 ~a23~0)) (.cse30 (<= ~a29~0 232)) (.cse19 (<= 141 ~a29~0)) (.cse6 (= ~a25~0 11)) (.cse8 (<= 307 ~a23~0)) (.cse2 (= ~a4~0 1)) (.cse14 (<= 0 .cse32)) (.cse15 (<= (+ ~a23~0 55) 0)) (.cse16 (or (< 0 .cse32) (not (= (mod (div .cse33 5) 5) 0)))) (.cse28 (<= 0 (+ ~a23~0 599772))) (.cse1 (= ~a3~0 1)) (.cse3 (= ~a8~0 15)) (.cse13 (<= ~a4~0 0))) (or (and .cse0 .cse1 .cse2 (<= 0 (+ ~a29~0 554195)) .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse3 .cse7) (and .cse8 .cse9 .cse1 .cse2 .cse3 .cse10) (and .cse11 (<= ~a29~0 275) .cse12 .cse1 .cse3 .cse13) (and .cse11 .cse9 .cse1 .cse2 .cse3) (and .cse14 .cse15 .cse16 .cse9 .cse1 .cse3 .cse17) (and .cse12 .cse18 .cse1 .cse3 .cse10 .cse13) (and .cse15 .cse12 .cse18 .cse19 .cse1 .cse3 .cse13) (and .cse14 .cse20 .cse16 .cse0 .cse1 .cse2 .cse3 .cse21 .cse17) (and .cse20 .cse11 .cse1 .cse2 .cse22 .cse3 .cse21) (and (or (and .cse12 .cse5 .cse18 .cse2) (and .cse20 .cse5 .cse18 .cse2)) .cse1 .cse3 .cse7) (and (or (not .cse20) .cse23) .cse24 .cse1 .cse2 .cse3 (<= 115953 ~a29~0)) (and .cse14 .cse16 .cse12 .cse0 .cse1 .cse25 .cse2 .cse3 .cse17) (and .cse5 .cse9 .cse1 .cse2 .cse3 .cse10 .cse21) (and .cse20 .cse0 .cse26 .cse1 .cse2 .cse3 .cse7) (and .cse9 .cse19 .cse1 .cse25 .cse2 .cse3) (and .cse6 (<= 278 ~a29~0) .cse1 .cse2 .cse3) (and (or (and .cse5 .cse27) (and .cse20 .cse5 .cse17) (and .cse12 .cse5)) .cse28 .cse1 .cse2 .cse3) (and .cse5 (<= 10250 ~a29~0) .cse1 (<= ~a25~0 9) .cse3) (and (<= ~a23~0 600000) (or (and .cse12 .cse24 .cse8 .cse1 .cse2 .cse3 .cse10) (and (or (and .cse12 .cse18 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3)) .cse10))) (and .cse14 .cse20 .cse16 .cse0 .cse8 .cse1 .cse2 .cse3) (and .cse14 .cse15 .cse16 .cse6 .cse1 .cse3 .cse17) (and .cse5 .cse2 .cse3 .cse4) (and .cse10 (let ((.cse29 (<= 253 ~a29~0))) (or (and .cse12 .cse28 .cse5 .cse18 .cse1 .cse3) (and .cse12 .cse5 .cse18 .cse1 .cse29 .cse3) (and .cse20 .cse28 .cse5 .cse18 .cse1 .cse29 .cse3)))) (and .cse20 .cse19 .cse1 .cse2 .cse30 .cse3) (and .cse14 .cse16 (or (and .cse26 .cse9 .cse1 .cse2 .cse22 .cse3) (and .cse1 .cse27 .cse2 .cse22 .cse3)) .cse21) (and .cse0 (or (and .cse12 .cse19 .cse1 .cse25 .cse2 .cse30 .cse3) (and .cse19 (let ((.cse31 (<= ~a29~0 220))) (or (and .cse6 .cse1 .cse31 .cse2 .cse3) (and .cse12 .cse8 .cse1 .cse31 .cse2 .cse3)))))) (and .cse14 .cse15 .cse16 .cse12 .cse28 .cse1 .cse3 .cse13 .cse17))))) [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-12-20 16:42:04,681 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,682 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,683 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,684 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,685 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,685 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,685 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,685 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,686 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,687 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-12-20 16:42:04,688 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,689 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,690 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-12-20 16:42:04,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:04,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 16:42:04,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:42:04 BoogieIcfgContainer [2023-12-20 16:42:04,727 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 16:42:04,728 INFO L158 Benchmark]: Toolchain (without parser) took 101556.41ms. Allocated memory was 206.6MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 160.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 206.6MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.56ms. Allocated memory is still 206.6MB. Free memory was 160.5MB in the beginning and 114.8MB in the end (delta: 45.8MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.27ms. Allocated memory was 206.6MB in the beginning and 278.9MB in the end (delta: 72.4MB). Free memory was 114.8MB in the beginning and 231.1MB in the end (delta: -116.4MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: Boogie Preprocessor took 161.81ms. Allocated memory is still 278.9MB. Free memory was 231.1MB in the beginning and 206.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: RCFGBuilder took 1311.92ms. Allocated memory is still 278.9MB. Free memory was 206.0MB in the beginning and 194.0MB in the end (delta: 12.0MB). Peak memory consumption was 132.1MB. Max. memory is 8.0GB. [2023-12-20 16:42:04,728 INFO L158 Benchmark]: TraceAbstraction took 99362.21ms. Allocated memory was 278.9MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 193.4MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-20 16:42:04,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 206.6MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 561.56ms. Allocated memory is still 206.6MB. Free memory was 160.5MB in the beginning and 114.8MB in the end (delta: 45.8MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 154.27ms. Allocated memory was 206.6MB in the beginning and 278.9MB in the end (delta: 72.4MB). Free memory was 114.8MB in the beginning and 231.1MB in the end (delta: -116.4MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 161.81ms. Allocated memory is still 278.9MB. Free memory was 231.1MB in the beginning and 206.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1311.92ms. Allocated memory is still 278.9MB. Free memory was 206.0MB in the beginning and 194.0MB in the end (delta: 12.0MB). Peak memory consumption was 132.1MB. Max. memory is 8.0GB. * TraceAbstraction took 99362.21ms. Allocated memory was 278.9MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 193.4MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 2.5GB. 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 - PositiveResult [Line: 169]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 99.3s, OverallIterations: 33, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 38.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11867 SdHoareTripleChecker+Valid, 27.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11867 mSDsluCounter, 5947 SdHoareTripleChecker+Invalid, 22.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1080 mSDsCounter, 5496 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34756 IncrementalHoareTripleChecker+Invalid, 40252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5496 mSolverCounterUnsat, 4867 mSDtfsCounter, 34756 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3865 GetRequests, 3730 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35613occurred in iteration=21, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.2s AutomataMinimizationTime, 33 MinimizatonAttempts, 61896 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 93 NumberOfFragments, 1040 HoareAnnotationTreeSize, 1 FormulaSimplifications, 717304 FormulaSimplificationTreeSizeReduction, 31.6s HoareSimplificationTime, 1 FormulaSimplificationsInter, 48177 FormulaSimplificationTreeSizeReductionInter, 6.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 14297 NumberOfCodeBlocks, 14297 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 15711 ConstructedInterpolants, 0 QuantifiedInterpolants, 65461 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3017 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 41 InterpolantComputations, 30 PerfectInterpolantSequences, 19366/20973 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((a23 <= 599997) && (a3 == 1)) && (a4 == 1)) && (0 <= (a29 + 554195))) && (a8 == 15)) && (a25 == 10)) || (((((a23 <= 247) && (a25 == 11)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((307 <= a23) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29))) || ((((((260 <= a29) && (a29 <= 275)) && (a25 == 12)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((260 <= a29) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 <= 10)) && (a3 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((((a25 == 12) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) && (246 <= a29)) && (a4 <= 0))) || ((((((((a23 + 55) <= 0) && (a25 == 12)) && (a29 <= 274)) && (141 <= a29)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && (a25 == 13)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a23 <= 599997)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (0 <= (a23 + 42))) && (a29 <= 130))) || (((((((a25 == 13) && (260 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)) && (0 <= (a23 + 42)))) || ((((((((a25 == 12) && (a23 <= 247)) && (a29 <= 274)) && (a4 == 1)) || ((((a25 == 13) && (a23 <= 247)) && (a29 <= 274)) && (a4 == 1))) && (a3 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((!((a25 == 13)) || (a23 < 307)) && (((a23 < 307) || !((a25 == 12))) || (a29 < 278))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (115953 <= a29))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 12)) && (a23 <= 599997)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a8 == 15)) && (a29 <= 130))) || (((((((a23 <= 247) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29)) && (0 <= (a23 + 42)))) || (((((((a25 == 13) && (a23 <= 599997)) && (a29 <= 140)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((a25 <= 10) && (141 <= a29)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a8 == 15))) || (((((a25 == 11) && (278 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((((a23 <= 247) && (((a25 <= 10) && (a29 <= 130)) || ((a25 == 12) && (a29 <= 130)))) || (((a25 == 13) && (a23 <= 247)) && (a29 <= 130))) || ((a25 == 12) && (a23 <= 247))) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((a23 <= 247) && (10250 <= a29)) && (a3 == 1)) && (a25 <= 9)) && (a8 == 15))) || ((a23 <= 600000) && ((((((((a25 == 12) && (((a23 < 307) || !((a25 == 12))) || (a29 < 278))) && (307 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29)) || (((((((a25 == 12) && (a29 <= 274)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || ((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) && (246 <= a29))))) || ((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && (a25 == 13)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a23 <= 599997)) && (307 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 11)) && (a3 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((a23 <= 247) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || ((246 <= a29) && ((((((((a25 == 12) && (0 <= (a23 + 599772))) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) || ((((((a25 == 12) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (253 <= a29)) && (a8 == 15))) || (((((((a25 == 13) && (0 <= (a23 + 599772))) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (253 <= a29)) && (a8 == 15))))) || ((((((a25 == 13) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a29 <= 232)) && (a8 == 15))) || ((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (((((((a29 <= 140) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)) || (((((a3 == 1) && (((a25 <= 10) && (a29 <= 130)) || ((a25 == 12) && (a29 <= 130)))) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)))) && (0 <= (a23 + 42)))) || ((a23 <= 599997) && ((((((((a25 == 12) && (141 <= a29)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a29 <= 232)) && (a8 == 15)) || ((141 <= a29) && ((((((a25 == 11) && (a3 == 1)) && (a29 <= 220)) && (a4 == 1)) && (a8 == 15)) || ((((((a25 == 12) && (307 <= a23)) && (a3 == 1)) && (a29 <= 220)) && (a4 == 1)) && (a8 == 15))))))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 12)) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0)) && (a29 <= 130))) RESULT: Ultimate proved your program to be correct! [2023-12-20 16:42:04,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...