./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i --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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i -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 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:00:08,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:00:08,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:00:08,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:00:08,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:00:08,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:00:08,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:00:08,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:00:08,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:00:08,331 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:00:08,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:00:08,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:00:08,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:00:08,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:00:08,334 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:00:08,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:00:08,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:00:08,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:00:08,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:00:08,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:00:08,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:00:08,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:00:08,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:00:08,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:00:08,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:00:08,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:00:08,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:00:08,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:00:08,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:00:08,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:00:08,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:00:08,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:00:08,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:00:08,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:00:08,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:00:08,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:00:08,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:00:08,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:00:08,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:00:08,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:00:08,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:00:08,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:00:08,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 [2024-10-24 12:00:08,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:00:08,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:00:08,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:00:08,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:00:08,663 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:00:08,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-10-24 12:00:10,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:00:10,917 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:00:10,918 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-10-24 12:00:10,925 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e6c104e6/8ad9d92b7d57439ab3f8e67f968c1d03/FLAG2df86fbcd [2024-10-24 12:00:11,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e6c104e6/8ad9d92b7d57439ab3f8e67f968c1d03 [2024-10-24 12:00:11,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:00:11,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:00:11,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:00:11,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:00:11,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:00:11,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713217f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11, skipping insertion in model container [2024-10-24 12:00:11,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:00:11,494 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-10-24 12:00:11,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:00:11,596 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:00:11,608 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-10-24 12:00:11,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:00:11,686 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:00:11,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11 WrapperNode [2024-10-24 12:00:11,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:00:11,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:00:11,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:00:11,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:00:11,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,758 INFO L138 Inliner]: procedures = 29, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 500 [2024-10-24 12:00:11,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:00:11,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:00:11,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:00:11,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:00:11,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,816 INFO L175 MemorySlicer]: Split 133 memory accesses to 2 slices as follows [2, 131]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 18 writes are split as follows [0, 18]. [2024-10-24 12:00:11,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:00:11,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:00:11,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:00:11,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:00:11,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (1/1) ... [2024-10-24 12:00:11,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:00:11,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:00:11,920 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) [2024-10-24 12:00:11,923 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 [2024-10-24 12:00:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:00:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 12:00:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 12:00:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:00:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 12:00:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:00:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:00:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:00:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:00:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:00:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:00:12,215 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:00:12,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:00:12,722 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-24 12:00:12,722 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:00:12,767 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:00:12,768 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 12:00:12,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:12 BoogieIcfgContainer [2024-10-24 12:00:12,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:00:12,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:00:12,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:00:12,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:00:12,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:00:11" (1/3) ... [2024-10-24 12:00:12,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fca9ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:12, skipping insertion in model container [2024-10-24 12:00:12,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:11" (2/3) ... [2024-10-24 12:00:12,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fca9ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:12, skipping insertion in model container [2024-10-24 12:00:12,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:12" (3/3) ... [2024-10-24 12:00:12,780 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-53.i [2024-10-24 12:00:12,799 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:00:12,799 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:00:12,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:00:12,877 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;@39ad03bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:00:12,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:00:12,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 12:00:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 12:00:12,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:12,905 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:12,906 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:12,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -40687976, now seen corresponding path program 1 times [2024-10-24 12:00:12,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:12,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457719876] [2024-10-24 12:00:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:13,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:13,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457719876] [2024-10-24 12:00:13,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457719876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:13,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:13,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:00:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186567358] [2024-10-24 12:00:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:13,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:00:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:13,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:00:13,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:00:13,540 INFO L87 Difference]: Start difference. First operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:13,585 INFO L93 Difference]: Finished difference Result 207 states and 330 transitions. [2024-10-24 12:00:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:00:13,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2024-10-24 12:00:13,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:13,596 INFO L225 Difference]: With dead ends: 207 [2024-10-24 12:00:13,596 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 12:00:13,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:00:13,604 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:13,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:13,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 12:00:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 12:00:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 12:00:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2024-10-24 12:00:13,718 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 135 [2024-10-24 12:00:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:13,718 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2024-10-24 12:00:13,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2024-10-24 12:00:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 12:00:13,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:13,728 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:13,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:00:13,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:13,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash 890284280, now seen corresponding path program 1 times [2024-10-24 12:00:13,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:13,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510400076] [2024-10-24 12:00:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:13,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:14,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:14,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510400076] [2024-10-24 12:00:14,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510400076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:14,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:14,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:14,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400289968] [2024-10-24 12:00:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:14,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:14,388 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:14,434 INFO L93 Difference]: Finished difference Result 205 states and 299 transitions. [2024-10-24 12:00:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:14,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-24 12:00:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:14,436 INFO L225 Difference]: With dead ends: 205 [2024-10-24 12:00:14,437 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 12:00:14,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:14,442 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:14,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 12:00:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 12:00:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 12:00:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-10-24 12:00:14,461 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 135 [2024-10-24 12:00:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:14,463 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-10-24 12:00:14,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-10-24 12:00:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 12:00:14,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:14,469 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:14,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:00:14,469 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:14,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:14,470 INFO L85 PathProgramCache]: Analyzing trace with hash -389579398, now seen corresponding path program 1 times [2024-10-24 12:00:14,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:14,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036385593] [2024-10-24 12:00:14,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:14,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:16,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:17,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:17,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:17,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036385593] [2024-10-24 12:00:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036385593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:00:17,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869490369] [2024-10-24 12:00:17,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:00:17,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:00:17,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:00:17,073 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:17,837 INFO L93 Difference]: Finished difference Result 256 states and 371 transitions. [2024-10-24 12:00:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:00:17,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2024-10-24 12:00:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:17,840 INFO L225 Difference]: With dead ends: 256 [2024-10-24 12:00:17,840 INFO L226 Difference]: Without dead ends: 154 [2024-10-24 12:00:17,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:00:17,841 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 468 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:17,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 334 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 12:00:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-24 12:00:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2024-10-24 12:00:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.386138613861386) internal successors, (140), 101 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 12:00:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 176 transitions. [2024-10-24 12:00:17,866 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 176 transitions. Word has length 135 [2024-10-24 12:00:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:17,867 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 176 transitions. [2024-10-24 12:00:17,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 176 transitions. [2024-10-24 12:00:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 12:00:17,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:17,869 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:17,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:00:17,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:17,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash -782606408, now seen corresponding path program 1 times [2024-10-24 12:00:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:17,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018171198] [2024-10-24 12:00:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:22,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:22,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018171198] [2024-10-24 12:00:22,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018171198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:22,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:22,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 12:00:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509199599] [2024-10-24 12:00:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:22,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:00:22,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:00:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:00:22,939 INFO L87 Difference]: Start difference. First operand 121 states and 176 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:23,874 INFO L93 Difference]: Finished difference Result 344 states and 499 transitions. [2024-10-24 12:00:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:00:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 135 [2024-10-24 12:00:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:23,877 INFO L225 Difference]: With dead ends: 344 [2024-10-24 12:00:23,877 INFO L226 Difference]: Without dead ends: 224 [2024-10-24 12:00:23,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:00:23,878 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 154 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:23,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 651 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 12:00:23,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-24 12:00:23,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 219. [2024-10-24 12:00:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.3722222222222222) internal successors, (247), 180 states have internal predecessors, (247), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 12:00:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 319 transitions. [2024-10-24 12:00:23,914 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 319 transitions. Word has length 135 [2024-10-24 12:00:23,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:23,915 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 319 transitions. [2024-10-24 12:00:23,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 319 transitions. [2024-10-24 12:00:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 12:00:23,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:23,917 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:23,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:00:23,917 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:23,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:23,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1011019949, now seen corresponding path program 1 times [2024-10-24 12:00:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:23,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666221964] [2024-10-24 12:00:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:23,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666221964] [2024-10-24 12:00:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666221964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:25,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:00:25,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283003436] [2024-10-24 12:00:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:00:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:00:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:00:25,471 INFO L87 Difference]: Start difference. First operand 219 states and 319 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:25,778 INFO L93 Difference]: Finished difference Result 341 states and 497 transitions. [2024-10-24 12:00:25,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:00:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-10-24 12:00:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:25,781 INFO L225 Difference]: With dead ends: 341 [2024-10-24 12:00:25,782 INFO L226 Difference]: Without dead ends: 221 [2024-10-24 12:00:25,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:00:25,786 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 232 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:25,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 349 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:00:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-24 12:00:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 203. [2024-10-24 12:00:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 164 states have (on average 1.353658536585366) internal successors, (222), 164 states have internal predecessors, (222), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 12:00:25,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 294 transitions. [2024-10-24 12:00:25,829 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 294 transitions. Word has length 137 [2024-10-24 12:00:25,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:25,829 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 294 transitions. [2024-10-24 12:00:25,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 294 transitions. [2024-10-24 12:00:25,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 12:00:25,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:25,832 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:25,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:00:25,833 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:25,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1404046959, now seen corresponding path program 1 times [2024-10-24 12:00:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566944908] [2024-10-24 12:00:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:25,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:28,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:28,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566944908] [2024-10-24 12:00:28,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566944908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:28,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:28,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 12:00:28,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298378973] [2024-10-24 12:00:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:28,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:00:28,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:28,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:00:28,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:00:28,221 INFO L87 Difference]: Start difference. First operand 203 states and 294 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:29,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:29,178 INFO L93 Difference]: Finished difference Result 357 states and 515 transitions. [2024-10-24 12:00:29,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 12:00:29,178 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2024-10-24 12:00:29,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:29,179 INFO L225 Difference]: With dead ends: 357 [2024-10-24 12:00:29,180 INFO L226 Difference]: Without dead ends: 253 [2024-10-24 12:00:29,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:00:29,181 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 285 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:29,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 588 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 12:00:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-24 12:00:29,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 219. [2024-10-24 12:00:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 180 states have internal predecessors, (246), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 12:00:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 318 transitions. [2024-10-24 12:00:29,208 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 318 transitions. Word has length 137 [2024-10-24 12:00:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:29,209 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 318 transitions. [2024-10-24 12:00:29,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 318 transitions. [2024-10-24 12:00:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 12:00:29,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:29,210 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:29,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 12:00:29,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:29,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2128471348, now seen corresponding path program 1 times [2024-10-24 12:00:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:29,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92614606] [2024-10-24 12:00:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:29,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:29,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:29,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92614606] [2024-10-24 12:00:29,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92614606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:29,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:29,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14863101] [2024-10-24 12:00:29,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:29,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:29,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:29,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:29,427 INFO L87 Difference]: Start difference. First operand 219 states and 318 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:29,472 INFO L93 Difference]: Finished difference Result 437 states and 635 transitions. [2024-10-24 12:00:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 12:00:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:29,474 INFO L225 Difference]: With dead ends: 437 [2024-10-24 12:00:29,474 INFO L226 Difference]: Without dead ends: 219 [2024-10-24 12:00:29,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:29,476 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:29,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-24 12:00:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-10-24 12:00:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 12:00:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 316 transitions. [2024-10-24 12:00:29,542 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 316 transitions. Word has length 140 [2024-10-24 12:00:29,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:29,542 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 316 transitions. [2024-10-24 12:00:29,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:29,543 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 316 transitions. [2024-10-24 12:00:29,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 12:00:29,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:29,544 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:29,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:00:29,545 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:29,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:29,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1870305910, now seen corresponding path program 1 times [2024-10-24 12:00:29,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:29,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977398688] [2024-10-24 12:00:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:29,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:29,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:30,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:30,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977398688] [2024-10-24 12:00:30,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977398688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:30,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:30,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:00:30,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384257503] [2024-10-24 12:00:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:30,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:00:30,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:30,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:00:30,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:00:30,004 INFO L87 Difference]: Start difference. First operand 219 states and 316 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:30,255 INFO L93 Difference]: Finished difference Result 515 states and 736 transitions. [2024-10-24 12:00:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:00:30,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 12:00:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:30,257 INFO L225 Difference]: With dead ends: 515 [2024-10-24 12:00:30,257 INFO L226 Difference]: Without dead ends: 297 [2024-10-24 12:00:30,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:00:30,258 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 172 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:30,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 561 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:00:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-24 12:00:30,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 245. [2024-10-24 12:00:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 206 states have (on average 1.3398058252427185) internal successors, (276), 206 states have internal predecessors, (276), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 12:00:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 348 transitions. [2024-10-24 12:00:30,299 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 348 transitions. Word has length 140 [2024-10-24 12:00:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:30,299 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 348 transitions. [2024-10-24 12:00:30,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:30,300 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 348 transitions. [2024-10-24 12:00:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 12:00:30,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:30,301 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:30,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:00:30,301 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:30,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash -183620742, now seen corresponding path program 1 times [2024-10-24 12:00:30,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:30,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602820400] [2024-10-24 12:00:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:30,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:32,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602820400] [2024-10-24 12:00:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602820400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:32,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:32,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 12:00:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962807807] [2024-10-24 12:00:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:32,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 12:00:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 12:00:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:00:32,159 INFO L87 Difference]: Start difference. First operand 245 states and 348 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:33,215 INFO L93 Difference]: Finished difference Result 633 states and 899 transitions. [2024-10-24 12:00:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-10-24 12:00:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:33,219 INFO L225 Difference]: With dead ends: 633 [2024-10-24 12:00:33,219 INFO L226 Difference]: Without dead ends: 389 [2024-10-24 12:00:33,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:00:33,221 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 384 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:33,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 749 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:00:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-10-24 12:00:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 351. [2024-10-24 12:00:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 293 states have (on average 1.3378839590443685) internal successors, (392), 293 states have internal predecessors, (392), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 500 transitions. [2024-10-24 12:00:33,282 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 500 transitions. Word has length 141 [2024-10-24 12:00:33,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:33,284 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 500 transitions. [2024-10-24 12:00:33,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 500 transitions. [2024-10-24 12:00:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 12:00:33,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:33,286 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:33,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:00:33,286 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:33,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash -576647752, now seen corresponding path program 1 times [2024-10-24 12:00:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:33,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688365661] [2024-10-24 12:00:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:36,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688365661] [2024-10-24 12:00:36,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688365661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:36,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:36,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 12:00:36,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335066706] [2024-10-24 12:00:36,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:36,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 12:00:36,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 12:00:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:00:36,158 INFO L87 Difference]: Start difference. First operand 351 states and 500 transitions. Second operand has 17 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 12:00:37,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:37,936 INFO L93 Difference]: Finished difference Result 738 states and 1048 transitions. [2024-10-24 12:00:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:37,936 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 141 [2024-10-24 12:00:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:37,938 INFO L225 Difference]: With dead ends: 738 [2024-10-24 12:00:37,938 INFO L226 Difference]: Without dead ends: 388 [2024-10-24 12:00:37,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:00:37,945 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 220 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:37,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1214 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 12:00:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-24 12:00:38,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 351. [2024-10-24 12:00:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 293 states have (on average 1.3344709897610922) internal successors, (391), 293 states have internal predecessors, (391), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 499 transitions. [2024-10-24 12:00:38,068 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 499 transitions. Word has length 141 [2024-10-24 12:00:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:38,073 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 499 transitions. [2024-10-24 12:00:38,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-10-24 12:00:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 499 transitions. [2024-10-24 12:00:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 12:00:38,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:38,075 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:38,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 12:00:38,075 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:38,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1872564484, now seen corresponding path program 1 times [2024-10-24 12:00:38,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515276837] [2024-10-24 12:00:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:39,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515276837] [2024-10-24 12:00:39,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515276837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:39,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:39,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 12:00:39,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264661441] [2024-10-24 12:00:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:39,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 12:00:39,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 12:00:39,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:00:39,414 INFO L87 Difference]: Start difference. First operand 351 states and 499 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:00:39,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:39,909 INFO L93 Difference]: Finished difference Result 816 states and 1162 transitions. [2024-10-24 12:00:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:00:39,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 141 [2024-10-24 12:00:39,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:39,911 INFO L225 Difference]: With dead ends: 816 [2024-10-24 12:00:39,911 INFO L226 Difference]: Without dead ends: 466 [2024-10-24 12:00:39,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:00:39,912 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 273 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:39,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 426 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 12:00:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-10-24 12:00:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 378. [2024-10-24 12:00:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 320 states have (on average 1.3375) internal successors, (428), 320 states have internal predecessors, (428), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 536 transitions. [2024-10-24 12:00:39,948 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 536 transitions. Word has length 141 [2024-10-24 12:00:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:39,948 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 536 transitions. [2024-10-24 12:00:39,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:00:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 536 transitions. [2024-10-24 12:00:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 12:00:39,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:39,949 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:39,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 12:00:39,950 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:39,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2029375802, now seen corresponding path program 1 times [2024-10-24 12:00:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:39,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615907921] [2024-10-24 12:00:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:39,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:41,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615907921] [2024-10-24 12:00:41,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615907921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:41,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:41,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 12:00:41,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120395504] [2024-10-24 12:00:41,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:41,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 12:00:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 12:00:41,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:00:41,999 INFO L87 Difference]: Start difference. First operand 378 states and 536 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:43,749 INFO L93 Difference]: Finished difference Result 792 states and 1120 transitions. [2024-10-24 12:00:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:43,753 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-10-24 12:00:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:43,756 INFO L225 Difference]: With dead ends: 792 [2024-10-24 12:00:43,756 INFO L226 Difference]: Without dead ends: 415 [2024-10-24 12:00:43,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:00:43,762 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 224 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:43,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1197 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 12:00:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-24 12:00:43,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 377. [2024-10-24 12:00:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 319 states have (on average 1.335423197492163) internal successors, (426), 319 states have internal predecessors, (426), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 534 transitions. [2024-10-24 12:00:43,841 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 534 transitions. Word has length 141 [2024-10-24 12:00:43,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:43,845 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 534 transitions. [2024-10-24 12:00:43,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 534 transitions. [2024-10-24 12:00:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 12:00:43,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:43,847 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:43,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 12:00:43,847 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:43,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1649477960, now seen corresponding path program 1 times [2024-10-24 12:00:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:43,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955851543] [2024-10-24 12:00:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:43,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:44,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:44,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955851543] [2024-10-24 12:00:44,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955851543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:44,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:44,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:00:44,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172176074] [2024-10-24 12:00:44,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:44,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:00:44,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:44,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:00:44,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:00:44,142 INFO L87 Difference]: Start difference. First operand 377 states and 534 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:44,287 INFO L93 Difference]: Finished difference Result 762 states and 1079 transitions. [2024-10-24 12:00:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:00:44,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 12:00:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:44,290 INFO L225 Difference]: With dead ends: 762 [2024-10-24 12:00:44,290 INFO L226 Difference]: Without dead ends: 386 [2024-10-24 12:00:44,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:00:44,293 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:44,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-10-24 12:00:44,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-10-24 12:00:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 328 states have (on average 1.326219512195122) internal successors, (435), 328 states have internal predecessors, (435), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 543 transitions. [2024-10-24 12:00:44,377 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 543 transitions. Word has length 142 [2024-10-24 12:00:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:44,377 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 543 transitions. [2024-10-24 12:00:44,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 543 transitions. [2024-10-24 12:00:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 12:00:44,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:44,381 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:44,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 12:00:44,381 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:44,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash -506862674, now seen corresponding path program 1 times [2024-10-24 12:00:44,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:44,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020104318] [2024-10-24 12:00:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:44,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:44,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:44,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020104318] [2024-10-24 12:00:44,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020104318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:44,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:44,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:00:44,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862844343] [2024-10-24 12:00:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:44,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:00:44,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:00:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:00:44,641 INFO L87 Difference]: Start difference. First operand 386 states and 543 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:44,794 INFO L93 Difference]: Finished difference Result 783 states and 1100 transitions. [2024-10-24 12:00:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:00:44,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 12:00:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:44,797 INFO L225 Difference]: With dead ends: 783 [2024-10-24 12:00:44,797 INFO L226 Difference]: Without dead ends: 398 [2024-10-24 12:00:44,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:00:44,799 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:44,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 697 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:00:44,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-24 12:00:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 392. [2024-10-24 12:00:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 334 states have (on average 1.3203592814371257) internal successors, (441), 334 states have internal predecessors, (441), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 549 transitions. [2024-10-24 12:00:44,850 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 549 transitions. Word has length 142 [2024-10-24 12:00:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:44,851 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 549 transitions. [2024-10-24 12:00:44,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:00:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 549 transitions. [2024-10-24 12:00:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:00:44,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:44,853 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:44,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 12:00:44,853 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:44,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1580283665, now seen corresponding path program 1 times [2024-10-24 12:00:44,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:44,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302680734] [2024-10-24 12:00:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:44,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:47,659 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:47,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:47,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302680734] [2024-10-24 12:00:47,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302680734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:47,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:47,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 12:00:47,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251371783] [2024-10-24 12:00:47,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:47,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 12:00:47,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:47,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 12:00:47,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:00:47,661 INFO L87 Difference]: Start difference. First operand 392 states and 549 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:48,841 INFO L93 Difference]: Finished difference Result 721 states and 1004 transitions. [2024-10-24 12:00:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:48,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-10-24 12:00:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:48,844 INFO L225 Difference]: With dead ends: 721 [2024-10-24 12:00:48,844 INFO L226 Difference]: Without dead ends: 442 [2024-10-24 12:00:48,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2024-10-24 12:00:48,846 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 562 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:48,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 741 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:00:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-24 12:00:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 401. [2024-10-24 12:00:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 343 states have (on average 1.3177842565597668) internal successors, (452), 343 states have internal predecessors, (452), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 560 transitions. [2024-10-24 12:00:48,889 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 560 transitions. Word has length 143 [2024-10-24 12:00:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:48,889 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 560 transitions. [2024-10-24 12:00:48,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 560 transitions. [2024-10-24 12:00:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:00:48,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:48,891 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:48,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 12:00:48,891 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:48,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1187256655, now seen corresponding path program 1 times [2024-10-24 12:00:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085523975] [2024-10-24 12:00:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:52,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:53,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085523975] [2024-10-24 12:00:53,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085523975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:53,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:53,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 12:00:53,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701679625] [2024-10-24 12:00:53,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:53,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 12:00:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 12:00:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:00:53,015 INFO L87 Difference]: Start difference. First operand 401 states and 560 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:00:55,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:55,659 INFO L93 Difference]: Finished difference Result 771 states and 1066 transitions. [2024-10-24 12:00:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:00:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 143 [2024-10-24 12:00:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:55,662 INFO L225 Difference]: With dead ends: 771 [2024-10-24 12:00:55,662 INFO L226 Difference]: Without dead ends: 483 [2024-10-24 12:00:55,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:00:55,664 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 466 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:55,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1315 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 12:00:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-10-24 12:00:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 401. [2024-10-24 12:00:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 343 states have (on average 1.3177842565597668) internal successors, (452), 343 states have internal predecessors, (452), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 560 transitions. [2024-10-24 12:00:55,702 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 560 transitions. Word has length 143 [2024-10-24 12:00:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:55,702 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 560 transitions. [2024-10-24 12:00:55,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:00:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 560 transitions. [2024-10-24 12:00:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:00:55,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:55,704 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:55,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 12:00:55,704 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:55,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2002985491, now seen corresponding path program 1 times [2024-10-24 12:00:55,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:55,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003764678] [2024-10-24 12:00:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:55,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:56,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003764678] [2024-10-24 12:00:56,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003764678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:56,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:56,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 12:00:56,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649749412] [2024-10-24 12:00:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:56,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 12:00:56,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 12:00:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 12:00:56,193 INFO L87 Difference]: Start difference. First operand 401 states and 560 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:56,592 INFO L93 Difference]: Finished difference Result 836 states and 1157 transitions. [2024-10-24 12:00:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:00:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2024-10-24 12:00:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:56,596 INFO L225 Difference]: With dead ends: 836 [2024-10-24 12:00:56,597 INFO L226 Difference]: Without dead ends: 548 [2024-10-24 12:00:56,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:00:56,598 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 211 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:56,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 377 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:00:56,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-24 12:00:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 427. [2024-10-24 12:00:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 369 states have (on average 1.3143631436314362) internal successors, (485), 369 states have internal predecessors, (485), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 593 transitions. [2024-10-24 12:00:56,655 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 593 transitions. Word has length 143 [2024-10-24 12:00:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:56,655 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 593 transitions. [2024-10-24 12:00:56,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 12:00:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 593 transitions. [2024-10-24 12:00:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:00:56,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:56,656 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:56,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 12:00:56,657 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:56,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1609958481, now seen corresponding path program 1 times [2024-10-24 12:00:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171084714] [2024-10-24 12:00:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:56,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:00:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:00:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:00:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:00:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:00:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:00:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:00:58,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:58,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171084714] [2024-10-24 12:00:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171084714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:58,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:58,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 12:00:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151558372] [2024-10-24 12:00:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:58,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 12:00:58,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 12:00:58,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:00:58,639 INFO L87 Difference]: Start difference. First operand 427 states and 593 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:59,747 INFO L93 Difference]: Finished difference Result 790 states and 1088 transitions. [2024-10-24 12:00:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-10-24 12:00:59,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:59,750 INFO L225 Difference]: With dead ends: 790 [2024-10-24 12:00:59,750 INFO L226 Difference]: Without dead ends: 476 [2024-10-24 12:00:59,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2024-10-24 12:00:59,751 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 229 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:59,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1059 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:00:59,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-24 12:00:59,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 434. [2024-10-24 12:00:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 376 states have (on average 1.3085106382978724) internal successors, (492), 376 states have internal predecessors, (492), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:00:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 600 transitions. [2024-10-24 12:00:59,791 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 600 transitions. Word has length 143 [2024-10-24 12:00:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:59,791 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 600 transitions. [2024-10-24 12:00:59,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 12:00:59,791 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 600 transitions. [2024-10-24 12:00:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:00:59,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:59,792 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:00:59,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 12:00:59,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:59,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:59,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1123759763, now seen corresponding path program 1 times [2024-10-24 12:00:59,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:59,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69623364] [2024-10-24 12:00:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:59,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:00,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:00,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69623364] [2024-10-24 12:01:00,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69623364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:00,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:00,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:01:00,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185654858] [2024-10-24 12:01:00,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:00,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:01:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:01:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:01:00,243 INFO L87 Difference]: Start difference. First operand 434 states and 600 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:00,673 INFO L93 Difference]: Finished difference Result 876 states and 1202 transitions. [2024-10-24 12:01:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 12:01:00,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 12:01:00,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:00,676 INFO L225 Difference]: With dead ends: 876 [2024-10-24 12:01:00,676 INFO L226 Difference]: Without dead ends: 555 [2024-10-24 12:01:00,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:01:00,677 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 52 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:00,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 926 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:01:00,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-24 12:01:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 453. [2024-10-24 12:01:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 395 states have (on average 1.3037974683544304) internal successors, (515), 395 states have internal predecessors, (515), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 623 transitions. [2024-10-24 12:01:00,723 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 623 transitions. Word has length 143 [2024-10-24 12:01:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:00,724 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 623 transitions. [2024-10-24 12:01:00,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 623 transitions. [2024-10-24 12:01:00,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:01:00,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:00,725 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:00,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 12:01:00,725 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:00,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:00,725 INFO L85 PathProgramCache]: Analyzing trace with hash 730732753, now seen corresponding path program 1 times [2024-10-24 12:01:00,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:00,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279489928] [2024-10-24 12:01:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:00,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:01,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:01,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279489928] [2024-10-24 12:01:01,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279489928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:01,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:01,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:01:01,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639082040] [2024-10-24 12:01:01,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:01,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:01:01,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:01:01,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:01:01,069 INFO L87 Difference]: Start difference. First operand 453 states and 623 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:01,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:01,502 INFO L93 Difference]: Finished difference Result 895 states and 1223 transitions. [2024-10-24 12:01:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:01:01,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 12:01:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:01,505 INFO L225 Difference]: With dead ends: 895 [2024-10-24 12:01:01,505 INFO L226 Difference]: Without dead ends: 555 [2024-10-24 12:01:01,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:01:01,507 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 51 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:01,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 747 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:01:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-24 12:01:01,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 446. [2024-10-24 12:01:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 388 states have (on average 1.306701030927835) internal successors, (507), 388 states have internal predecessors, (507), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 615 transitions. [2024-10-24 12:01:01,546 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 615 transitions. Word has length 143 [2024-10-24 12:01:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:01,547 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 615 transitions. [2024-10-24 12:01:01,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 615 transitions. [2024-10-24 12:01:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 12:01:01,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:01,548 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:01,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 12:01:01,548 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:01,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -958210989, now seen corresponding path program 1 times [2024-10-24 12:01:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:01,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33564591] [2024-10-24 12:01:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:03,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:03,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33564591] [2024-10-24 12:01:03,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33564591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:03,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:03,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 12:01:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431143350] [2024-10-24 12:01:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:03,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 12:01:03,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:03,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 12:01:03,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:01:03,698 INFO L87 Difference]: Start difference. First operand 446 states and 615 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:08,055 INFO L93 Difference]: Finished difference Result 729 states and 994 transitions. [2024-10-24 12:01:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:01:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 143 [2024-10-24 12:01:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:08,058 INFO L225 Difference]: With dead ends: 729 [2024-10-24 12:01:08,058 INFO L226 Difference]: Without dead ends: 544 [2024-10-24 12:01:08,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:01:08,061 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 400 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:08,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1326 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 12:01:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-10-24 12:01:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 453. [2024-10-24 12:01:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 395 states have (on average 1.3012658227848102) internal successors, (514), 395 states have internal predecessors, (514), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 622 transitions. [2024-10-24 12:01:08,113 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 622 transitions. Word has length 143 [2024-10-24 12:01:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:08,113 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 622 transitions. [2024-10-24 12:01:08,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 622 transitions. [2024-10-24 12:01:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 12:01:08,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:08,114 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:08,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 12:01:08,114 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:08,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:08,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1968199569, now seen corresponding path program 1 times [2024-10-24 12:01:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:08,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053075487] [2024-10-24 12:01:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:10,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:11,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:11,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053075487] [2024-10-24 12:01:11,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053075487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:11,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:11,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 12:01:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900071482] [2024-10-24 12:01:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:11,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 12:01:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 12:01:11,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:01:11,194 INFO L87 Difference]: Start difference. First operand 453 states and 622 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:12,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:12,016 INFO L93 Difference]: Finished difference Result 959 states and 1311 transitions. [2024-10-24 12:01:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:01:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-10-24 12:01:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:12,021 INFO L225 Difference]: With dead ends: 959 [2024-10-24 12:01:12,021 INFO L226 Difference]: Without dead ends: 507 [2024-10-24 12:01:12,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:01:12,023 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 442 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:12,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 375 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:01:12,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-24 12:01:12,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 491. [2024-10-24 12:01:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 433 states have (on average 1.2933025404157044) internal successors, (560), 433 states have internal predecessors, (560), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 668 transitions. [2024-10-24 12:01:12,083 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 668 transitions. Word has length 144 [2024-10-24 12:01:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:12,083 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 668 transitions. [2024-10-24 12:01:12,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 668 transitions. [2024-10-24 12:01:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 12:01:12,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:12,084 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:12,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 12:01:12,085 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:12,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:12,085 INFO L85 PathProgramCache]: Analyzing trace with hash -831080835, now seen corresponding path program 1 times [2024-10-24 12:01:12,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:12,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085839943] [2024-10-24 12:01:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:12,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:13,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085839943] [2024-10-24 12:01:13,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085839943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:13,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:13,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 12:01:13,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354030944] [2024-10-24 12:01:13,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:13,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 12:01:13,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 12:01:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:01:13,972 INFO L87 Difference]: Start difference. First operand 491 states and 668 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:15,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:15,094 INFO L93 Difference]: Finished difference Result 906 states and 1207 transitions. [2024-10-24 12:01:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 12:01:15,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-10-24 12:01:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:15,099 INFO L225 Difference]: With dead ends: 906 [2024-10-24 12:01:15,099 INFO L226 Difference]: Without dead ends: 904 [2024-10-24 12:01:15,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-10-24 12:01:15,101 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 464 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:15,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 525 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:01:15,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2024-10-24 12:01:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 796. [2024-10-24 12:01:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 738 states have (on average 1.2967479674796747) internal successors, (957), 738 states have internal predecessors, (957), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1065 transitions. [2024-10-24 12:01:15,215 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1065 transitions. Word has length 144 [2024-10-24 12:01:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:15,218 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1065 transitions. [2024-10-24 12:01:15,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 12:01:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1065 transitions. [2024-10-24 12:01:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 12:01:15,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:15,220 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:15,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 12:01:15,220 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:15,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1338993955, now seen corresponding path program 1 times [2024-10-24 12:01:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717522074] [2024-10-24 12:01:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:15,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:15,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:15,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717522074] [2024-10-24 12:01:15,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717522074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:15,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:15,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:01:15,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700040761] [2024-10-24 12:01:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:15,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:01:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:15,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:01:15,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:01:15,412 INFO L87 Difference]: Start difference. First operand 796 states and 1065 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:15,539 INFO L93 Difference]: Finished difference Result 1649 states and 2195 transitions. [2024-10-24 12:01:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:01:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 12:01:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:15,547 INFO L225 Difference]: With dead ends: 1649 [2024-10-24 12:01:15,548 INFO L226 Difference]: Without dead ends: 854 [2024-10-24 12:01:15,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:01:15,551 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:15,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:01:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-10-24 12:01:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 804. [2024-10-24 12:01:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 746 states have (on average 1.2935656836461127) internal successors, (965), 746 states have internal predecessors, (965), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 12:01:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1073 transitions. [2024-10-24 12:01:15,672 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1073 transitions. Word has length 144 [2024-10-24 12:01:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:15,672 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1073 transitions. [2024-10-24 12:01:15,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 12:01:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1073 transitions. [2024-10-24 12:01:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 12:01:15,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:15,674 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:01:15,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 12:01:15,674 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:15,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1462509908, now seen corresponding path program 1 times [2024-10-24 12:01:15,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:15,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43980040] [2024-10-24 12:01:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:15,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 12:01:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 12:01:19,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:19,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43980040] [2024-10-24 12:01:19,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43980040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:19,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:19,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 12:01:19,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737950923] [2024-10-24 12:01:19,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:19,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 12:01:19,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 12:01:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:01:19,318 INFO L87 Difference]: Start difference. First operand 804 states and 1073 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)