./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c32a1c240fa08c94c8e2d9ef78c149e9bedee3c9a83e144197714b3e6496faaf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 20:19:45,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 20:19:45,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 20:19:45,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 20:19:45,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 20:19:45,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 20:19:45,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 20:19:45,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 20:19:45,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 20:19:45,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 20:19:45,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 20:19:45,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 20:19:45,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 20:19:45,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 20:19:45,935 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 20:19:45,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 20:19:45,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 20:19:45,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 20:19:45,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 20:19:45,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 20:19:45,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 20:19:45,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 20:19:45,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 20:19:45,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 20:19:45,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 20:19:45,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 20:19:45,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 20:19:45,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 20:19:45,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 20:19:45,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 20:19:45,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 20:19:45,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 20:19:45,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:19:45,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 20:19:45,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 20:19:45,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 20:19:45,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 20:19:45,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 20:19:45,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 20:19:45,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 20:19:45,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 20:19:45,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 20:19:45,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c32a1c240fa08c94c8e2d9ef78c149e9bedee3c9a83e144197714b3e6496faaf [2024-10-23 20:19:46,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 20:19:46,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 20:19:46,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 20:19:46,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 20:19:46,274 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 20:19:46,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c [2024-10-23 20:19:47,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 20:19:48,037 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 20:19:48,038 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c [2024-10-23 20:19:48,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731187099/e41571e72bb84353b4ec2ca3cab9fc1b/FLAGa3055f09c [2024-10-23 20:19:48,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731187099/e41571e72bb84353b4ec2ca3cab9fc1b [2024-10-23 20:19:48,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 20:19:48,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 20:19:48,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 20:19:48,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 20:19:48,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 20:19:48,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b2b972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48, skipping insertion in model container [2024-10-23 20:19:48,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 20:19:48,511 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c[19398,19411] [2024-10-23 20:19:48,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:19:48,565 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 20:19:48,662 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label56.c[19398,19411] [2024-10-23 20:19:48,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:19:48,693 INFO L204 MainTranslator]: Completed translation [2024-10-23 20:19:48,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48 WrapperNode [2024-10-23 20:19:48,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 20:19:48,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 20:19:48,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 20:19:48,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 20:19:48,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,805 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2024-10-23 20:19:48,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 20:19:48,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 20:19:48,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 20:19:48,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 20:19:48,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,865 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]. [2024-10-23 20:19:48,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 20:19:48,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 20:19:48,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 20:19:48,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 20:19:48,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (1/1) ... [2024-10-23 20:19:48,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:19:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:19:48,948 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) [2024-10-23 20:19:48,951 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 [2024-10-23 20:19:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 20:19:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 20:19:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 20:19:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 20:19:49,057 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 20:19:49,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 20:19:50,103 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-23 20:19:50,103 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 20:19:50,163 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 20:19:50,165 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 20:19:50,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:50 BoogieIcfgContainer [2024-10-23 20:19:50,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 20:19:50,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 20:19:50,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 20:19:50,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 20:19:50,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:48" (1/3) ... [2024-10-23 20:19:50,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7c973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:50, skipping insertion in model container [2024-10-23 20:19:50,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:48" (2/3) ... [2024-10-23 20:19:50,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7c973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:50, skipping insertion in model container [2024-10-23 20:19:50,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:50" (3/3) ... [2024-10-23 20:19:50,176 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2024-10-23 20:19:50,194 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 20:19:50,194 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 20:19:50,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 20:19:50,278 INFO L333 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, 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;@5948e686, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 20:19:50,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 20:19:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-23 20:19:50,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:50,295 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:50,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:50,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash -569933011, now seen corresponding path program 1 times [2024-10-23 20:19:50,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:50,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518994679] [2024-10-23 20:19:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:50,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518994679] [2024-10-23 20:19:50,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518994679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:50,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:50,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888018935] [2024-10-23 20:19:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:50,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 20:19:50,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 20:19:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 20:19:50,750 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 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 61.0) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:50,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:50,788 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2024-10-23 20:19:50,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 20:19:50,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-10-23 20:19:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:50,799 INFO L225 Difference]: With dead ends: 329 [2024-10-23 20:19:50,800 INFO L226 Difference]: Without dead ends: 163 [2024-10-23 20:19:50,803 INFO L431 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 [2024-10-23 20:19:50,805 INFO L432 NwaCegarLoop]: 248 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, 248 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 [2024-10-23 20:19:50,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 20:19:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-23 20:19:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-10-23 20:19:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2024-10-23 20:19:50,843 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 122 [2024-10-23 20:19:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:50,844 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2024-10-23 20:19:50,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2024-10-23 20:19:50,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-23 20:19:50,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:50,847 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:50,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 20:19:50,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:50,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash -134242054, now seen corresponding path program 1 times [2024-10-23 20:19:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:50,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368039132] [2024-10-23 20:19:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:51,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:51,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368039132] [2024-10-23 20:19:51,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368039132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:51,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:51,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:51,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995201378] [2024-10-23 20:19:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:51,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:51,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:51,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:51,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:51,125 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:51,746 INFO L93 Difference]: Finished difference Result 471 states and 717 transitions. [2024-10-23 20:19:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:51,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-10-23 20:19:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:51,752 INFO L225 Difference]: With dead ends: 471 [2024-10-23 20:19:51,755 INFO L226 Difference]: Without dead ends: 309 [2024-10-23 20:19:51,756 INFO L431 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 [2024-10-23 20:19:51,757 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 77 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:51,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 79 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 20:19:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-10-23 20:19:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-10-23 20:19:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4383116883116882) internal successors, (443), 308 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 443 transitions. [2024-10-23 20:19:51,776 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 443 transitions. Word has length 122 [2024-10-23 20:19:51,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:51,777 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 443 transitions. [2024-10-23 20:19:51,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 443 transitions. [2024-10-23 20:19:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-23 20:19:51,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:51,780 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:51,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 20:19:51,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:51,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash -102814055, now seen corresponding path program 1 times [2024-10-23 20:19:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672209506] [2024-10-23 20:19:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:52,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:52,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672209506] [2024-10-23 20:19:52,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672209506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:52,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:52,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:52,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480583740] [2024-10-23 20:19:52,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:52,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:52,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:52,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:52,053 INFO L87 Difference]: Start difference. First operand 309 states and 443 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:52,556 INFO L93 Difference]: Finished difference Result 912 states and 1313 transitions. [2024-10-23 20:19:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-10-23 20:19:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:52,560 INFO L225 Difference]: With dead ends: 912 [2024-10-23 20:19:52,560 INFO L226 Difference]: Without dead ends: 604 [2024-10-23 20:19:52,562 INFO L431 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 [2024-10-23 20:19:52,563 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 158 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:52,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 95 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 20:19:52,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-10-23 20:19:52,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 597. [2024-10-23 20:19:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 1.3976510067114094) internal successors, (833), 596 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:52,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 833 transitions. [2024-10-23 20:19:52,600 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 833 transitions. Word has length 140 [2024-10-23 20:19:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:52,601 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 833 transitions. [2024-10-23 20:19:52,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 833 transitions. [2024-10-23 20:19:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-23 20:19:52,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:52,613 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:52,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 20:19:52,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:52,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:52,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2004797643, now seen corresponding path program 1 times [2024-10-23 20:19:52,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:52,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150877942] [2024-10-23 20:19:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:52,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:52,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:52,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150877942] [2024-10-23 20:19:52,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150877942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:52,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:52,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:52,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802347731] [2024-10-23 20:19:52,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:52,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:52,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:52,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:52,799 INFO L87 Difference]: Start difference. First operand 597 states and 833 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:53,060 INFO L93 Difference]: Finished difference Result 1180 states and 1649 transitions. [2024-10-23 20:19:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-10-23 20:19:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:53,063 INFO L225 Difference]: With dead ends: 1180 [2024-10-23 20:19:53,064 INFO L226 Difference]: Without dead ends: 584 [2024-10-23 20:19:53,065 INFO L431 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 [2024-10-23 20:19:53,066 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 195 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:53,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 21 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-23 20:19:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-10-23 20:19:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2024-10-23 20:19:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 583 states have (on average 1.2984562607204118) internal successors, (757), 583 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 757 transitions. [2024-10-23 20:19:53,081 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 757 transitions. Word has length 141 [2024-10-23 20:19:53,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:53,081 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 757 transitions. [2024-10-23 20:19:53,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 757 transitions. [2024-10-23 20:19:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-23 20:19:53,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:53,084 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:53,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 20:19:53,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:53,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 590365070, now seen corresponding path program 1 times [2024-10-23 20:19:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189092854] [2024-10-23 20:19:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-23 20:19:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:53,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189092854] [2024-10-23 20:19:53,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189092854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:53,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:53,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:53,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980453616] [2024-10-23 20:19:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:53,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:53,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:53,383 INFO L87 Difference]: Start difference. First operand 584 states and 757 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:53,799 INFO L93 Difference]: Finished difference Result 1447 states and 1853 transitions. [2024-10-23 20:19:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:53,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-10-23 20:19:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:53,803 INFO L225 Difference]: With dead ends: 1447 [2024-10-23 20:19:53,803 INFO L226 Difference]: Without dead ends: 864 [2024-10-23 20:19:53,804 INFO L431 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 [2024-10-23 20:19:53,806 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 139 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:53,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 93 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:53,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-10-23 20:19:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-10-23 20:19:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.2132097334878331) internal successors, (1047), 863 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1047 transitions. [2024-10-23 20:19:53,831 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1047 transitions. Word has length 144 [2024-10-23 20:19:53,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:53,831 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1047 transitions. [2024-10-23 20:19:53,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1047 transitions. [2024-10-23 20:19:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-23 20:19:53,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:53,836 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:53,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 20:19:53,836 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:53,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1542021899, now seen corresponding path program 1 times [2024-10-23 20:19:53,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:53,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358188090] [2024-10-23 20:19:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:53,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-23 20:19:54,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358188090] [2024-10-23 20:19:54,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358188090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:54,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:54,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749557520] [2024-10-23 20:19:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:54,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:54,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:54,018 INFO L87 Difference]: Start difference. First operand 864 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:54,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:54,462 INFO L93 Difference]: Finished difference Result 2009 states and 2477 transitions. [2024-10-23 20:19:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:54,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 149 [2024-10-23 20:19:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:54,468 INFO L225 Difference]: With dead ends: 2009 [2024-10-23 20:19:54,469 INFO L226 Difference]: Without dead ends: 1286 [2024-10-23 20:19:54,471 INFO L431 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 [2024-10-23 20:19:54,472 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 145 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:54,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 218 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-10-23 20:19:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1284. [2024-10-23 20:19:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1283 states have (on average 1.171473109898675) internal successors, (1503), 1283 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1503 transitions. [2024-10-23 20:19:54,503 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1503 transitions. Word has length 149 [2024-10-23 20:19:54,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:54,503 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 1503 transitions. [2024-10-23 20:19:54,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:54,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1503 transitions. [2024-10-23 20:19:54,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-23 20:19:54,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:54,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:54,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 20:19:54,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:54,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash -55007414, now seen corresponding path program 1 times [2024-10-23 20:19:54,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:54,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31189797] [2024-10-23 20:19:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:54,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:54,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:54,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31189797] [2024-10-23 20:19:54,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31189797] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:19:54,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861848778] [2024-10-23 20:19:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:54,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:19:54,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:19:54,875 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) [2024-10-23 20:19:54,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 20:19:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:55,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 20:19:55,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:19:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-23 20:19:55,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 20:19:55,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861848778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:55,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 20:19:55,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-23 20:19:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496856695] [2024-10-23 20:19:55,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:55,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:55,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:55,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:55,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 20:19:55,228 INFO L87 Difference]: Start difference. First operand 1284 states and 1503 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:55,665 INFO L93 Difference]: Finished difference Result 2987 states and 3542 transitions. [2024-10-23 20:19:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 149 [2024-10-23 20:19:55,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:55,671 INFO L225 Difference]: With dead ends: 2987 [2024-10-23 20:19:55,671 INFO L226 Difference]: Without dead ends: 1141 [2024-10-23 20:19:55,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 20:19:55,676 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 21 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:55,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 244 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:55,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-10-23 20:19:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2024-10-23 20:19:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.1587719298245613) internal successors, (1321), 1140 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:55,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1321 transitions. [2024-10-23 20:19:55,697 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1321 transitions. Word has length 149 [2024-10-23 20:19:55,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:55,698 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1321 transitions. [2024-10-23 20:19:55,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1321 transitions. [2024-10-23 20:19:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-23 20:19:55,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:55,700 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:55,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 20:19:55,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:19:55,906 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:55,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 756920911, now seen corresponding path program 1 times [2024-10-23 20:19:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:55,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473514890] [2024-10-23 20:19:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:55,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:56,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:56,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473514890] [2024-10-23 20:19:56,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473514890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:56,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:56,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:56,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596270839] [2024-10-23 20:19:56,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:56,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:56,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:56,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:56,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:56,031 INFO L87 Difference]: Start difference. First operand 1141 states and 1321 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:56,468 INFO L93 Difference]: Finished difference Result 2418 states and 2813 transitions. [2024-10-23 20:19:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:56,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-23 20:19:56,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:56,474 INFO L225 Difference]: With dead ends: 2418 [2024-10-23 20:19:56,475 INFO L226 Difference]: Without dead ends: 1418 [2024-10-23 20:19:56,477 INFO L431 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 [2024-10-23 20:19:56,480 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 138 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:56,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 47 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-10-23 20:19:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1278. [2024-10-23 20:19:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 1.1440877055599061) internal successors, (1461), 1277 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1461 transitions. [2024-10-23 20:19:56,513 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1461 transitions. Word has length 151 [2024-10-23 20:19:56,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:56,513 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1461 transitions. [2024-10-23 20:19:56,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1461 transitions. [2024-10-23 20:19:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-23 20:19:56,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:56,517 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 20:19:56,518 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2022767463, now seen corresponding path program 1 times [2024-10-23 20:19:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:56,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162270665] [2024-10-23 20:19:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:56,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:56,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162270665] [2024-10-23 20:19:56,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162270665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:56,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:56,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015754712] [2024-10-23 20:19:56,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:56,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:56,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:56,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:56,632 INFO L87 Difference]: Start difference. First operand 1278 states and 1461 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:56,994 INFO L93 Difference]: Finished difference Result 2274 states and 2627 transitions. [2024-10-23 20:19:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:56,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-10-23 20:19:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:56,999 INFO L225 Difference]: With dead ends: 2274 [2024-10-23 20:19:56,999 INFO L226 Difference]: Without dead ends: 995 [2024-10-23 20:19:57,002 INFO L431 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 [2024-10-23 20:19:57,004 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 137 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:57,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 209 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-10-23 20:19:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 993. [2024-10-23 20:19:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.1290322580645162) internal successors, (1120), 992 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1120 transitions. [2024-10-23 20:19:57,022 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1120 transitions. Word has length 155 [2024-10-23 20:19:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:57,022 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1120 transitions. [2024-10-23 20:19:57,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1120 transitions. [2024-10-23 20:19:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-23 20:19:57,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:57,025 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:57,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 20:19:57,025 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:57,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1511041999, now seen corresponding path program 1 times [2024-10-23 20:19:57,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:57,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922573458] [2024-10-23 20:19:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-23 20:19:57,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:57,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922573458] [2024-10-23 20:19:57,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922573458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:57,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:57,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361311508] [2024-10-23 20:19:57,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:57,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:57,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:57,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:57,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:57,154 INFO L87 Difference]: Start difference. First operand 993 states and 1120 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) [2024-10-23 20:19:57,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:57,524 INFO L93 Difference]: Finished difference Result 1845 states and 2094 transitions. [2024-10-23 20:19:57,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:57,524 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 173 [2024-10-23 20:19:57,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:57,527 INFO L225 Difference]: With dead ends: 1845 [2024-10-23 20:19:57,527 INFO L226 Difference]: Without dead ends: 993 [2024-10-23 20:19:57,529 INFO L431 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 [2024-10-23 20:19:57,529 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 110 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:57,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 211 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-10-23 20:19:57,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2024-10-23 20:19:57,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.1149193548387097) internal successors, (1106), 992 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1106 transitions. [2024-10-23 20:19:57,544 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1106 transitions. Word has length 173 [2024-10-23 20:19:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:57,545 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1106 transitions. [2024-10-23 20:19:57,545 INFO L472 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) [2024-10-23 20:19:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1106 transitions. [2024-10-23 20:19:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-23 20:19:57,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:57,548 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:57,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 20:19:57,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:57,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1524228099, now seen corresponding path program 1 times [2024-10-23 20:19:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709876654] [2024-10-23 20:19:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-23 20:19:57,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:57,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709876654] [2024-10-23 20:19:57,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709876654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:57,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:57,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:57,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122328611] [2024-10-23 20:19:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:57,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:57,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:57,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:57,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:57,677 INFO L87 Difference]: Start difference. First operand 993 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:58,070 INFO L93 Difference]: Finished difference Result 2267 states and 2567 transitions. [2024-10-23 20:19:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 194 [2024-10-23 20:19:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:58,076 INFO L225 Difference]: With dead ends: 2267 [2024-10-23 20:19:58,077 INFO L226 Difference]: Without dead ends: 1415 [2024-10-23 20:19:58,079 INFO L431 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 [2024-10-23 20:19:58,079 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 132 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:58,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 176 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:58,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-10-23 20:19:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1414. [2024-10-23 20:19:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1413 states have (on average 1.1160651096956828) internal successors, (1577), 1413 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1577 transitions. [2024-10-23 20:19:58,103 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1577 transitions. Word has length 194 [2024-10-23 20:19:58,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:58,103 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1577 transitions. [2024-10-23 20:19:58,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1577 transitions. [2024-10-23 20:19:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-23 20:19:58,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:58,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:58,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 20:19:58,107 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:58,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1826303087, now seen corresponding path program 1 times [2024-10-23 20:19:58,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352729098] [2024-10-23 20:19:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:58,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:58,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352729098] [2024-10-23 20:19:58,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352729098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:58,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:58,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855081599] [2024-10-23 20:19:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:58,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:58,227 INFO L87 Difference]: Start difference. First operand 1414 states and 1577 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:58,596 INFO L93 Difference]: Finished difference Result 3106 states and 3485 transitions. [2024-10-23 20:19:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:58,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 194 [2024-10-23 20:19:58,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:58,601 INFO L225 Difference]: With dead ends: 3106 [2024-10-23 20:19:58,602 INFO L226 Difference]: Without dead ends: 1410 [2024-10-23 20:19:58,604 INFO L431 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 [2024-10-23 20:19:58,604 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 144 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:58,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 29 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-10-23 20:19:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1270. [2024-10-23 20:19:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 1.070133963750985) internal successors, (1358), 1269 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1358 transitions. [2024-10-23 20:19:58,625 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1358 transitions. Word has length 194 [2024-10-23 20:19:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:58,626 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1358 transitions. [2024-10-23 20:19:58,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1358 transitions. [2024-10-23 20:19:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-23 20:19:58,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:58,629 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:58,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 20:19:58,630 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1829082227, now seen corresponding path program 1 times [2024-10-23 20:19:58,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:58,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846875104] [2024-10-23 20:19:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846875104] [2024-10-23 20:19:58,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846875104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:58,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:58,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 20:19:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467763138] [2024-10-23 20:19:58,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:58,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 20:19:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 20:19:58,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 20:19:58,836 INFO L87 Difference]: Start difference. First operand 1270 states and 1358 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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) [2024-10-23 20:19:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:59,352 INFO L93 Difference]: Finished difference Result 2400 states and 2574 transitions. [2024-10-23 20:19:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 20:19:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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 220 [2024-10-23 20:19:59,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:59,357 INFO L225 Difference]: With dead ends: 2400 [2024-10-23 20:19:59,357 INFO L226 Difference]: Without dead ends: 1271 [2024-10-23 20:19:59,359 INFO L431 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 [2024-10-23 20:19:59,359 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 367 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:59,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 193 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 20:19:59,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-10-23 20:19:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1270. [2024-10-23 20:19:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 1.0677698975571317) internal successors, (1355), 1269 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:19:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1355 transitions. [2024-10-23 20:19:59,381 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1355 transitions. Word has length 220 [2024-10-23 20:19:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:59,381 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1355 transitions. [2024-10-23 20:19:59,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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) [2024-10-23 20:19:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1355 transitions. [2024-10-23 20:19:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-10-23 20:19:59,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:59,386 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-10-23 20:19:59,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 20:19:59,386 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:59,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:59,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1049075717, now seen corresponding path program 1 times [2024-10-23 20:19:59,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:59,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680615556] [2024-10-23 20:19:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:59,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:59,905 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:59,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:59,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680615556] [2024-10-23 20:19:59,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680615556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:19:59,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740923493] [2024-10-23 20:19:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:59,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:19:59,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:19:59,908 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) [2024-10-23 20:19:59,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 20:20:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:20:00,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 20:20:00,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:20:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-23 20:20:00,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 20:20:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740923493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:20:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 20:20:00,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-23 20:20:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958460522] [2024-10-23 20:20:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:20:00,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:20:00,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:20:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:20:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 20:20:00,224 INFO L87 Difference]: Start difference. First operand 1270 states and 1355 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:20:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:20:00,579 INFO L93 Difference]: Finished difference Result 2678 states and 2869 transitions. [2024-10-23 20:20:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:20:00,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 [2024-10-23 20:20:00,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:20:00,581 INFO L225 Difference]: With dead ends: 2678 [2024-10-23 20:20:00,581 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 20:20:00,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 20:20:00,585 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:20:00,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 40 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:20:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 20:20:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 20:20:00,586 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) [2024-10-23 20:20:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 20:20:00,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2024-10-23 20:20:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:20:00,587 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 20:20:00,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:20:00,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 20:20:00,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 20:20:00,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 20:20:00,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 20:20:00,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-23 20:20:00,796 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:20:00,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 20:20:01,025 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 20:20:01,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:20:01 BoogieIcfgContainer [2024-10-23 20:20:01,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 20:20:01,041 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 20:20:01,041 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 20:20:01,042 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 20:20:01,042 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:50" (3/4) ... [2024-10-23 20:20:01,044 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 20:20:01,065 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 20:20:01,066 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 20:20:01,067 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 20:20:01,068 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 20:20:01,234 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 20:20:01,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 20:20:01,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 20:20:01,236 INFO L158 Benchmark]: Toolchain (without parser) took 13150.50ms. Allocated memory was 151.0MB in the beginning and 352.3MB in the end (delta: 201.3MB). Free memory was 94.0MB in the beginning and 284.3MB in the end (delta: -190.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,236 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 20:20:01,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.82ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 65.6MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.28ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 65.6MB in the beginning and 163.4MB in the end (delta: -97.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,236 INFO L158 Benchmark]: Boogie Preprocessor took 100.93ms. Allocated memory is still 197.1MB. Free memory was 163.4MB in the beginning and 158.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,237 INFO L158 Benchmark]: RCFGBuilder took 1257.69ms. Allocated memory is still 197.1MB. Free memory was 158.2MB in the beginning and 143.0MB in the end (delta: 15.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,237 INFO L158 Benchmark]: TraceAbstraction took 10873.34ms. Allocated memory was 197.1MB in the beginning and 352.3MB in the end (delta: 155.2MB). Free memory was 141.9MB in the beginning and 296.9MB in the end (delta: -155.0MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,237 INFO L158 Benchmark]: Witness Printer took 193.74ms. Allocated memory is still 352.3MB. Free memory was 296.9MB in the beginning and 284.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-23 20:20:01,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.82ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 65.6MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.28ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 65.6MB in the beginning and 163.4MB in the end (delta: -97.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.93ms. Allocated memory is still 197.1MB. Free memory was 163.4MB in the beginning and 158.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1257.69ms. Allocated memory is still 197.1MB. Free memory was 158.2MB in the beginning and 143.0MB in the end (delta: 15.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10873.34ms. Allocated memory was 197.1MB in the beginning and 352.3MB in the end (delta: 155.2MB). Free memory was 141.9MB in the beginning and 296.9MB in the end (delta: -155.0MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB. * Witness Printer took 193.74ms. Allocated memory is still 352.3MB. Free memory was 296.9MB in the beginning and 284.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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: 551]: 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, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1786 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1786 mSDsluCounter, 1903 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 577 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4328 IncrementalHoareTripleChecker+Invalid, 4905 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 577 mSolverCounterUnsat, 1742 mSDtfsCounter, 4328 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1414occurred in iteration=11, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 293 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2707 NumberOfCodeBlocks, 2707 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2691 ConstructedInterpolants, 0 QuantifiedInterpolants, 8336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 666 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 953/1070 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: 616]: Loop Invariant Derived loop invariant: (((((((((((((a17 == 8) && (a25 == 1)) && (a19 == 1)) && (a28 <= 7)) || ((((a17 == 8) && (a25 == 1)) && (a11 != 1)) && (a28 <= 7))) || ((((a17 == 8) && (a25 == 1)) && (a28 == 10)) && (a11 != 1))) || (((a17 == 8) && (a25 == 0)) && (a28 <= 7))) || (((((a17 == 8) && (9 <= a28)) && (a25 == 1)) && (a28 <= 10)) && (a19 == 1))) || ((((a17 == 8) && (a25 == 1)) && (a19 == 1)) && (a11 != 1))) || (((((a17 == 8) && (9 <= a28)) && (a28 <= 10)) && (a19 == 1)) && (a25 == 0))) || ((((a17 == 8) && (a28 == 10)) && (a19 == 1)) && (a11 != 1))) || (a17 < 8)) || ((((a17 == 8) && (a28 <= 10)) && (a11 != 1)) && (a25 == 0))) RESULT: Ultimate proved your program to be correct! [2024-10-23 20:20:01,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE