./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-56.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-56.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 dac49eff911c415c5e3abe3f83531cb71a1bf616fed1a86cc9f731a40011a721 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:00:28,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:00:29,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:00:29,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:00:29,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:00:29,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:00:29,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:00:29,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:00:29,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:00:29,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:00:29,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:00:29,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:00:29,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:00:29,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:00:29,047 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:00:29,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:00:29,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:00:29,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:00:29,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:00:29,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:00:29,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:00:29,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:00:29,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:00:29,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:00:29,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:00:29,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:00:29,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:00:29,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:00:29,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:00:29,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:00:29,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:00:29,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:00:29,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:00:29,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:00:29,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:00:29,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:00:29,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:00:29,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:00:29,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:00:29,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:00:29,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:00:29,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:00:29,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dac49eff911c415c5e3abe3f83531cb71a1bf616fed1a86cc9f731a40011a721 [2024-10-24 12:00:29,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:00:29,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:00:29,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:00:29,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:00:29,395 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:00:29,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i [2024-10-24 12:00:30,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:00:31,012 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:00:31,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-56.i [2024-10-24 12:00:31,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9479b2d7e/504585abdadc4883b7d12aaa618ecec0/FLAGcdcfa2579 [2024-10-24 12:00:31,367 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9479b2d7e/504585abdadc4883b7d12aaa618ecec0 [2024-10-24 12:00:31,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:00:31,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:00:31,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:00:31,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:00:31,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:00:31,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe53673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31, skipping insertion in model container [2024-10-24 12:00:31,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:00:31,600 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-56.i[917,930] [2024-10-24 12:00:31,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:00:31,700 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:00:31,711 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-56.i[917,930] [2024-10-24 12:00:31,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:00:31,822 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:00:31,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31 WrapperNode [2024-10-24 12:00:31,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:00:31,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:00:31,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:00:31,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:00:31,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,916 INFO L138 Inliner]: procedures = 29, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 583 [2024-10-24 12:00:31,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:00:31,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:00:31,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:00:31,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:00:31,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,994 INFO L175 MemorySlicer]: Split 147 memory accesses to 2 slices as follows [2, 145]. 99 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 18 writes are split as follows [0, 18]. [2024-10-24 12:00:31,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:31,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:00:32,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:00:32,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:00:32,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:00:32,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (1/1) ... [2024-10-24 12:00:32,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:00:32,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:00:32,086 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 12:00:32,090 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 12:00:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:00:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 12:00:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 12:00:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:00:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:00:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 12:00:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 12:00:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:00:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:00:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 12:00:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 12:00:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:00:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:00:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:00:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:00:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:00:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:00:32,306 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:00:32,313 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:00:32,933 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-10-24 12:00:32,934 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:00:32,975 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:00:32,975 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 12:00:32,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:32 BoogieIcfgContainer [2024-10-24 12:00:32,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:00:32,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:00:32,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:00:32,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:00:32,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:00:31" (1/3) ... [2024-10-24 12:00:32,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea4c1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:32, skipping insertion in model container [2024-10-24 12:00:32,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:31" (2/3) ... [2024-10-24 12:00:32,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea4c1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:32, skipping insertion in model container [2024-10-24 12:00:32,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:32" (3/3) ... [2024-10-24 12:00:32,987 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-56.i [2024-10-24 12:00:33,004 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:00:33,006 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:00:33,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:00:33,097 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;@42f57dea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:00:33,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:00:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 98 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 12:00:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 12:00:33,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:33,123 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:33,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:33,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:33,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1357368787, now seen corresponding path program 1 times [2024-10-24 12:00:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:33,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272261102] [2024-10-24 12:00:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:33,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272261102] [2024-10-24 12:00:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272261102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:33,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:33,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:00:33,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210451580] [2024-10-24 12:00:33,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:33,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:00:33,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:33,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:00:33,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:00:33,666 INFO L87 Difference]: Start difference. First operand has 119 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 98 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:00:33,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:33,723 INFO L93 Difference]: Finished difference Result 235 states and 377 transitions. [2024-10-24 12:00:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:00:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-24 12:00:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:33,733 INFO L225 Difference]: With dead ends: 235 [2024-10-24 12:00:33,733 INFO L226 Difference]: Without dead ends: 117 [2024-10-24 12:00:33,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 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 12:00:33,744 INFO L432 NwaCegarLoop]: 171 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, 171 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 12:00:33,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-24 12:00:33,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-10-24 12:00:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 96 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 12:00:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 175 transitions. [2024-10-24 12:00:33,792 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 175 transitions. Word has length 146 [2024-10-24 12:00:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:33,793 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 175 transitions. [2024-10-24 12:00:33,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 12:00:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 175 transitions. [2024-10-24 12:00:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 12:00:33,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:33,822 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:33,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:00:33,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:33,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash 610206363, now seen corresponding path program 1 times [2024-10-24 12:00:33,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:33,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905201908] [2024-10-24 12:00:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:33,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:34,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905201908] [2024-10-24 12:00:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905201908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638816528] [2024-10-24 12:00:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:34,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:34,203 INFO L87 Difference]: Start difference. First operand 117 states and 175 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:34,264 INFO L93 Difference]: Finished difference Result 234 states and 351 transitions. [2024-10-24 12:00:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:34,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-10-24 12:00:34,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:34,268 INFO L225 Difference]: With dead ends: 234 [2024-10-24 12:00:34,268 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 12:00:34,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 12:00:34,270 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:34,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:34,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 12:00:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-24 12:00:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.422680412371134) internal successors, (138), 97 states have internal predecessors, (138), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 12:00:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 176 transitions. [2024-10-24 12:00:34,287 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 176 transitions. Word has length 146 [2024-10-24 12:00:34,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:34,292 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 176 transitions. [2024-10-24 12:00:34,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:34,293 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 176 transitions. [2024-10-24 12:00:34,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 12:00:34,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:34,298 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:34,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:00:34,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:34,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1078737379, now seen corresponding path program 1 times [2024-10-24 12:00:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:34,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087433310] [2024-10-24 12:00:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:34,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087433310] [2024-10-24 12:00:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087433310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:36,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:36,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 12:00:36,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250373067] [2024-10-24 12:00:36,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:36,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 12:00:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 12:00:36,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-24 12:00:36,824 INFO L87 Difference]: Start difference. First operand 118 states and 176 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:38,531 INFO L93 Difference]: Finished difference Result 473 states and 708 transitions. [2024-10-24 12:00:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 12:00:38,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-10-24 12:00:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:38,539 INFO L225 Difference]: With dead ends: 473 [2024-10-24 12:00:38,539 INFO L226 Difference]: Without dead ends: 356 [2024-10-24 12:00:38,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2024-10-24 12:00:38,545 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 459 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:38,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1223 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 12:00:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-24 12:00:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 194. [2024-10-24 12:00:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 153 states have internal predecessors, (215), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:38,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 291 transitions. [2024-10-24 12:00:38,590 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 291 transitions. Word has length 146 [2024-10-24 12:00:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:38,591 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 291 transitions. [2024-10-24 12:00:38,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 291 transitions. [2024-10-24 12:00:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 12:00:38,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:38,594 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:38,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:00:38,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:38,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:38,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1316553550, now seen corresponding path program 1 times [2024-10-24 12:00:38,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:38,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227217145] [2024-10-24 12:00:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227217145] [2024-10-24 12:00:38,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227217145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:38,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:38,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:38,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650936581] [2024-10-24 12:00:38,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:38,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:38,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:38,752 INFO L87 Difference]: Start difference. First operand 194 states and 291 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:38,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:38,789 INFO L93 Difference]: Finished difference Result 312 states and 468 transitions. [2024-10-24 12:00:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:38,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-24 12:00:38,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:38,795 INFO L225 Difference]: With dead ends: 312 [2024-10-24 12:00:38,795 INFO L226 Difference]: Without dead ends: 195 [2024-10-24 12:00:38,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 12:00:38,800 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:38,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-24 12:00:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-10-24 12:00:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 154 states have (on average 1.396103896103896) internal successors, (215), 154 states have internal predecessors, (215), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 291 transitions. [2024-10-24 12:00:38,829 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 291 transitions. Word has length 147 [2024-10-24 12:00:38,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:38,830 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 291 transitions. [2024-10-24 12:00:38,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 291 transitions. [2024-10-24 12:00:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 12:00:38,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:38,834 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:38,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:00:38,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:38,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:38,835 INFO L85 PathProgramCache]: Analyzing trace with hash -229195012, now seen corresponding path program 1 times [2024-10-24 12:00:38,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:38,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630984385] [2024-10-24 12:00:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:38,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630984385] [2024-10-24 12:00:38,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630984385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:38,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:38,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:38,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103344970] [2024-10-24 12:00:38,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:38,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:38,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:38,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:38,990 INFO L87 Difference]: Start difference. First operand 195 states and 291 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:39,025 INFO L93 Difference]: Finished difference Result 314 states and 469 transitions. [2024-10-24 12:00:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:39,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-24 12:00:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:39,028 INFO L225 Difference]: With dead ends: 314 [2024-10-24 12:00:39,028 INFO L226 Difference]: Without dead ends: 196 [2024-10-24 12:00:39,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 12:00:39,029 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:39,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:39,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-10-24 12:00:39,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-10-24 12:00:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 155 states have (on average 1.3870967741935485) internal successors, (215), 155 states have internal predecessors, (215), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 291 transitions. [2024-10-24 12:00:39,050 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 291 transitions. Word has length 147 [2024-10-24 12:00:39,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:39,051 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 291 transitions. [2024-10-24 12:00:39,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 291 transitions. [2024-10-24 12:00:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 12:00:39,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:39,053 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:39,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:00:39,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:39,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -41054766, now seen corresponding path program 1 times [2024-10-24 12:00:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:39,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996844433] [2024-10-24 12:00:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:39,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:39,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:39,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996844433] [2024-10-24 12:00:39,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996844433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:39,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:39,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348937628] [2024-10-24 12:00:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:39,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:39,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:39,168 INFO L87 Difference]: Start difference. First operand 196 states and 291 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:39,201 INFO L93 Difference]: Finished difference Result 315 states and 468 transitions. [2024-10-24 12:00:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-24 12:00:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:39,203 INFO L225 Difference]: With dead ends: 315 [2024-10-24 12:00:39,203 INFO L226 Difference]: Without dead ends: 196 [2024-10-24 12:00:39,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 12:00:39,205 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:39,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-10-24 12:00:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-10-24 12:00:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 155 states have (on average 1.3806451612903226) internal successors, (214), 155 states have internal predecessors, (214), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 290 transitions. [2024-10-24 12:00:39,220 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 290 transitions. Word has length 147 [2024-10-24 12:00:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:39,220 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 290 transitions. [2024-10-24 12:00:39,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 290 transitions. [2024-10-24 12:00:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 12:00:39,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:39,222 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:39,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 12:00:39,223 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:39,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2072052792, now seen corresponding path program 1 times [2024-10-24 12:00:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:39,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620929715] [2024-10-24 12:00:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:39,341 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 89 [2024-10-24 12:00:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:39,345 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 101 [2024-10-24 12:00:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:39,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620929715] [2024-10-24 12:00:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620929715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:39,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:39,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:00:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166917343] [2024-10-24 12:00:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:39,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:00:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:39,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:00:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:00:39,353 INFO L87 Difference]: Start difference. First operand 196 states and 290 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:39,386 INFO L93 Difference]: Finished difference Result 315 states and 466 transitions. [2024-10-24 12:00:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:00:39,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-24 12:00:39,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:39,389 INFO L225 Difference]: With dead ends: 315 [2024-10-24 12:00:39,389 INFO L226 Difference]: Without dead ends: 196 [2024-10-24 12:00:39,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 12:00:39,390 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:39,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:39,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-10-24 12:00:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-10-24 12:00:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 289 transitions. [2024-10-24 12:00:39,405 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 289 transitions. Word has length 147 [2024-10-24 12:00:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:39,405 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 289 transitions. [2024-10-24 12:00:39,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,406 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 289 transitions. [2024-10-24 12:00:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:39,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:39,407 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:39,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:00:39,408 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:39,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:39,408 INFO L85 PathProgramCache]: Analyzing trace with hash -845160328, now seen corresponding path program 1 times [2024-10-24 12:00:39,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:39,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188457914] [2024-10-24 12:00:39,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:39,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:39,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:39,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188457914] [2024-10-24 12:00:39,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188457914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:39,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:39,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:00:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576307351] [2024-10-24 12:00:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:39,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:00:39,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:39,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:00:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:00:39,632 INFO L87 Difference]: Start difference. First operand 196 states and 289 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:39,674 INFO L93 Difference]: Finished difference Result 318 states and 468 transitions. [2024-10-24 12:00:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:00:39,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-24 12:00:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:39,677 INFO L225 Difference]: With dead ends: 318 [2024-10-24 12:00:39,678 INFO L226 Difference]: Without dead ends: 199 [2024-10-24 12:00:39,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 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 12:00:39,679 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:39,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 661 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:00:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-10-24 12:00:39,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-10-24 12:00:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 158 states have (on average 1.3670886075949367) internal successors, (216), 158 states have internal predecessors, (216), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 292 transitions. [2024-10-24 12:00:39,696 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 292 transitions. Word has length 148 [2024-10-24 12:00:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:39,697 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 292 transitions. [2024-10-24 12:00:39,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 292 transitions. [2024-10-24 12:00:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:39,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:39,699 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:39,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:00:39,699 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:39,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:39,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1759380547, now seen corresponding path program 1 times [2024-10-24 12:00:39,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:39,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253098174] [2024-10-24 12:00:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:39,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:44,582 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 32 [2024-10-24 12:00:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:44,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:44,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253098174] [2024-10-24 12:00:44,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253098174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:44,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:44,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 12:00:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331805165] [2024-10-24 12:00:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:44,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 12:00:44,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 12:00:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:00:44,861 INFO L87 Difference]: Start difference. First operand 199 states and 292 transitions. Second operand has 18 states, 16 states have (on average 3.5) internal successors, (56), 18 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:00:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:47,586 INFO L93 Difference]: Finished difference Result 493 states and 718 transitions. [2024-10-24 12:00:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:00:47,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.5) internal successors, (56), 18 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-24 12:00:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:47,589 INFO L225 Difference]: With dead ends: 493 [2024-10-24 12:00:47,589 INFO L226 Difference]: Without dead ends: 371 [2024-10-24 12:00:47,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:00:47,594 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 624 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:47,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 984 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 12:00:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-24 12:00:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 221. [2024-10-24 12:00:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 180 states have (on average 1.3944444444444444) internal successors, (251), 180 states have internal predecessors, (251), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 12:00:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 327 transitions. [2024-10-24 12:00:47,624 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 327 transitions. Word has length 148 [2024-10-24 12:00:47,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:47,627 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 327 transitions. [2024-10-24 12:00:47,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.5) internal successors, (56), 18 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:00:47,627 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 327 transitions. [2024-10-24 12:00:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:47,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:47,629 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:47,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:00:47,629 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:47,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash 748263297, now seen corresponding path program 1 times [2024-10-24 12:00:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:47,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098183108] [2024-10-24 12:00:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:50,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:50,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098183108] [2024-10-24 12:00:50,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098183108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:50,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:50,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 12:00:50,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56052267] [2024-10-24 12:00:50,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:50,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 12:00:50,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:50,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 12:00:50,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:00:50,985 INFO L87 Difference]: Start difference. First operand 221 states and 327 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:00:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:53,047 INFO L93 Difference]: Finished difference Result 535 states and 775 transitions. [2024-10-24 12:00:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:00:53,048 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-24 12:00:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:53,050 INFO L225 Difference]: With dead ends: 535 [2024-10-24 12:00:53,050 INFO L226 Difference]: Without dead ends: 413 [2024-10-24 12:00:53,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-10-24 12:00:53,052 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 693 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:53,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1118 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 12:00:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-24 12:00:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 293. [2024-10-24 12:00:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 248 states have (on average 1.403225806451613) internal successors, (348), 249 states have internal predecessors, (348), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:00:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 428 transitions. [2024-10-24 12:00:53,080 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 428 transitions. Word has length 148 [2024-10-24 12:00:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:53,081 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 428 transitions. [2024-10-24 12:00:53,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:00:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 428 transitions. [2024-10-24 12:00:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:53,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:53,084 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:53,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 12:00:53,085 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:53,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1006428735, now seen corresponding path program 1 times [2024-10-24 12:00:53,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116655125] [2024-10-24 12:00:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:00:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:00:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:00:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:56,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116655125] [2024-10-24 12:00:56,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116655125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:56,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:56,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 12:00:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095538615] [2024-10-24 12:00:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:56,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 12:00:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 12:00:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:00:56,669 INFO L87 Difference]: Start difference. First operand 293 states and 428 transitions. Second operand has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:00:57,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:57,779 INFO L93 Difference]: Finished difference Result 496 states and 721 transitions. [2024-10-24 12:00:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:00:57,780 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-24 12:00:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:57,783 INFO L225 Difference]: With dead ends: 496 [2024-10-24 12:00:57,784 INFO L226 Difference]: Without dead ends: 328 [2024-10-24 12:00:57,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:00:57,786 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 391 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:57,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 498 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 12:00:57,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-24 12:00:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 303. [2024-10-24 12:00:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 256 states have (on average 1.390625) internal successors, (356), 257 states have internal predecessors, (356), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:00:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 440 transitions. [2024-10-24 12:00:57,850 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 440 transitions. Word has length 148 [2024-10-24 12:00:57,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:57,851 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 440 transitions. [2024-10-24 12:00:57,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:00:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 440 transitions. [2024-10-24 12:00:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:57,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:57,854 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:57,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 12:00:57,854 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:57,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:57,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1874194919, now seen corresponding path program 1 times [2024-10-24 12:00:57,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:57,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579565218] [2024-10-24 12:00:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:57,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:57,894 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 12:00:58,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:00:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:00:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:00:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:00:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:00:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:00:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:00:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:00:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:00:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,587 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 12:00:58,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:00:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:00:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:00:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:00:58,609 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 95 [2024-10-24 12:00:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:00:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:00:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:00:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:00:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:00:58,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:00:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579565218] [2024-10-24 12:00:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579565218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:00:58,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:00:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 12:00:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523429356] [2024-10-24 12:00:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:00:58,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 12:00:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:00:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 12:00:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 12:00:58,641 INFO L87 Difference]: Start difference. First operand 303 states and 440 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:00:59,130 INFO L93 Difference]: Finished difference Result 550 states and 801 transitions. [2024-10-24 12:00:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:00:59,131 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-24 12:00:59,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:00:59,135 INFO L225 Difference]: With dead ends: 550 [2024-10-24 12:00:59,135 INFO L226 Difference]: Without dead ends: 353 [2024-10-24 12:00:59,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:00:59,136 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 196 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:00:59,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 392 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 12:00:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-24 12:00:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 314. [2024-10-24 12:00:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 267 states have (on average 1.3932584269662922) internal successors, (372), 268 states have internal predecessors, (372), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:00:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 456 transitions. [2024-10-24 12:00:59,174 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 456 transitions. Word has length 148 [2024-10-24 12:00:59,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:00:59,175 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 456 transitions. [2024-10-24 12:00:59,175 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:00:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 456 transitions. [2024-10-24 12:00:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:00:59,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:00:59,177 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:59,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 12:00:59,177 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:00:59,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:00:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -133354569, now seen corresponding path program 1 times [2024-10-24 12:00:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:00:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848010672] [2024-10-24 12:00:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:00:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:00:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:03,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:03,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848010672] [2024-10-24 12:01:03,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848010672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:03,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:03,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 12:01:03,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327851167] [2024-10-24 12:01:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:03,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 12:01:03,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:03,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 12:01:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:01:03,500 INFO L87 Difference]: Start difference. First operand 314 states and 456 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:01:05,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:05,868 INFO L93 Difference]: Finished difference Result 698 states and 1016 transitions. [2024-10-24 12:01:05,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:01:05,869 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-24 12:01:05,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:05,872 INFO L225 Difference]: With dead ends: 698 [2024-10-24 12:01:05,872 INFO L226 Difference]: Without dead ends: 490 [2024-10-24 12:01:05,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=215, Invalid=841, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 12:01:05,875 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 470 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:05,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1230 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 12:01:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-10-24 12:01:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 337. [2024-10-24 12:01:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 290 states have (on average 1.4) internal successors, (406), 291 states have internal predecessors, (406), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 490 transitions. [2024-10-24 12:01:05,918 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 490 transitions. Word has length 148 [2024-10-24 12:01:05,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:05,918 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 490 transitions. [2024-10-24 12:01:05,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:01:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 490 transitions. [2024-10-24 12:01:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:05,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:05,922 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:05,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 12:01:05,922 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:05,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash -612358715, now seen corresponding path program 1 times [2024-10-24 12:01:05,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:05,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607521527] [2024-10-24 12:01:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:05,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:09,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:09,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607521527] [2024-10-24 12:01:09,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607521527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:09,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:09,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 12:01:09,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844670312] [2024-10-24 12:01:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:09,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 12:01:09,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:09,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 12:01:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:01:09,505 INFO L87 Difference]: Start difference. First operand 337 states and 490 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:01:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:11,465 INFO L93 Difference]: Finished difference Result 707 states and 1027 transitions. [2024-10-24 12:01:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 12:01:11,466 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-24 12:01:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:11,468 INFO L225 Difference]: With dead ends: 707 [2024-10-24 12:01:11,469 INFO L226 Difference]: Without dead ends: 495 [2024-10-24 12:01:11,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2024-10-24 12:01:11,470 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 261 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:11,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1219 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 12:01:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-24 12:01:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 337. [2024-10-24 12:01:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 290 states have (on average 1.396551724137931) internal successors, (405), 291 states have internal predecessors, (405), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 489 transitions. [2024-10-24 12:01:11,506 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 489 transitions. Word has length 148 [2024-10-24 12:01:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:11,507 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 489 transitions. [2024-10-24 12:01:11,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:01:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 489 transitions. [2024-10-24 12:01:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:11,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:11,509 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:11,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 12:01:11,510 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:11,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:11,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1623475965, now seen corresponding path program 1 times [2024-10-24 12:01:11,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:11,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255695860] [2024-10-24 12:01:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:11,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:12,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:13,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255695860] [2024-10-24 12:01:13,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255695860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:13,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:13,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:01:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536522935] [2024-10-24 12:01:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:13,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:01:13,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:13,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:01:13,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:01:13,019 INFO L87 Difference]: Start difference. First operand 337 states and 489 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:13,476 INFO L93 Difference]: Finished difference Result 582 states and 845 transitions. [2024-10-24 12:01:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:01:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-24 12:01:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:13,480 INFO L225 Difference]: With dead ends: 582 [2024-10-24 12:01:13,480 INFO L226 Difference]: Without dead ends: 374 [2024-10-24 12:01:13,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:01:13,481 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 346 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:13,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 432 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 12:01:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-10-24 12:01:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 339. [2024-10-24 12:01:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 292 states have (on average 1.3972602739726028) internal successors, (408), 293 states have internal predecessors, (408), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:13,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 492 transitions. [2024-10-24 12:01:13,517 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 492 transitions. Word has length 148 [2024-10-24 12:01:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:13,518 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 492 transitions. [2024-10-24 12:01:13,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 492 transitions. [2024-10-24 12:01:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:13,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:13,520 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:13,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 12:01:13,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:13,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1365310527, now seen corresponding path program 1 times [2024-10-24 12:01:13,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:13,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930716726] [2024-10-24 12:01:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:13,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:16,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:16,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930716726] [2024-10-24 12:01:16,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930716726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:16,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:16,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 12:01:16,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698486463] [2024-10-24 12:01:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:16,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 12:01:16,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 12:01:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:01:16,333 INFO L87 Difference]: Start difference. First operand 339 states and 492 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:01:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:18,224 INFO L93 Difference]: Finished difference Result 704 states and 1023 transitions. [2024-10-24 12:01:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:01:18,225 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-24 12:01:18,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:18,227 INFO L225 Difference]: With dead ends: 704 [2024-10-24 12:01:18,228 INFO L226 Difference]: Without dead ends: 494 [2024-10-24 12:01:18,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 12:01:18,230 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 488 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:18,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1181 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 12:01:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-24 12:01:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 339. [2024-10-24 12:01:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 292 states have (on average 1.393835616438356) internal successors, (407), 293 states have internal predecessors, (407), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 491 transitions. [2024-10-24 12:01:18,269 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 491 transitions. Word has length 148 [2024-10-24 12:01:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:18,269 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 491 transitions. [2024-10-24 12:01:18,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-24 12:01:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 491 transitions. [2024-10-24 12:01:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:18,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:18,271 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:18,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 12:01:18,272 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:18,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1789873465, now seen corresponding path program 1 times [2024-10-24 12:01:18,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476748822] [2024-10-24 12:01:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:18,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476748822] [2024-10-24 12:01:18,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476748822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:18,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:18,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:01:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637912272] [2024-10-24 12:01:18,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:18,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:01:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:01:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:01:18,994 INFO L87 Difference]: Start difference. First operand 339 states and 491 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:19,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:19,348 INFO L93 Difference]: Finished difference Result 549 states and 798 transitions. [2024-10-24 12:01:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:01:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-24 12:01:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:19,351 INFO L225 Difference]: With dead ends: 549 [2024-10-24 12:01:19,351 INFO L226 Difference]: Without dead ends: 339 [2024-10-24 12:01:19,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:01:19,353 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 140 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:19,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 426 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:01:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-24 12:01:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-10-24 12:01:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 292 states have (on average 1.3904109589041096) internal successors, (406), 293 states have internal predecessors, (406), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 490 transitions. [2024-10-24 12:01:19,398 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 490 transitions. Word has length 148 [2024-10-24 12:01:19,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:19,398 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 490 transitions. [2024-10-24 12:01:19,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 490 transitions. [2024-10-24 12:01:19,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:19,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:19,399 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:19,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 12:01:19,400 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:19,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:19,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1930422075, now seen corresponding path program 1 times [2024-10-24 12:01:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:19,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869654809] [2024-10-24 12:01:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:19,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:23,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869654809] [2024-10-24 12:01:23,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869654809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:23,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:23,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 12:01:23,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603400436] [2024-10-24 12:01:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:23,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 12:01:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:23,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 12:01:23,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:01:23,601 INFO L87 Difference]: Start difference. First operand 339 states and 490 transitions. Second operand has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:01:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:25,781 INFO L93 Difference]: Finished difference Result 714 states and 1034 transitions. [2024-10-24 12:01:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 12:01:25,781 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-24 12:01:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:25,784 INFO L225 Difference]: With dead ends: 714 [2024-10-24 12:01:25,784 INFO L226 Difference]: Without dead ends: 504 [2024-10-24 12:01:25,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:01:25,786 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 516 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:25,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1114 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 12:01:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-24 12:01:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 362. [2024-10-24 12:01:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 315 states have (on average 1.3968253968253967) internal successors, (440), 316 states have internal predecessors, (440), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 524 transitions. [2024-10-24 12:01:25,825 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 524 transitions. Word has length 148 [2024-10-24 12:01:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:25,826 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 524 transitions. [2024-10-24 12:01:25,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-24 12:01:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 524 transitions. [2024-10-24 12:01:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:25,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:25,828 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:25,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 12:01:25,828 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:25,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:25,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2106379783, now seen corresponding path program 1 times [2024-10-24 12:01:25,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737797561] [2024-10-24 12:01:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:29,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:29,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737797561] [2024-10-24 12:01:29,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737797561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:29,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:29,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 12:01:29,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623715951] [2024-10-24 12:01:29,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:29,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 12:01:29,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:29,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 12:01:29,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:01:29,194 INFO L87 Difference]: Start difference. First operand 362 states and 524 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:31,324 INFO L93 Difference]: Finished difference Result 714 states and 1033 transitions. [2024-10-24 12:01:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:01:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-24 12:01:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:31,327 INFO L225 Difference]: With dead ends: 714 [2024-10-24 12:01:31,327 INFO L226 Difference]: Without dead ends: 504 [2024-10-24 12:01:31,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:01:31,329 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 400 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:31,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1378 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 12:01:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-24 12:01:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 363. [2024-10-24 12:01:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 316 states have (on average 1.3955696202531647) internal successors, (441), 317 states have internal predecessors, (441), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 525 transitions. [2024-10-24 12:01:31,369 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 525 transitions. Word has length 148 [2024-10-24 12:01:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:31,369 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 525 transitions. [2024-10-24 12:01:31,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 12:01:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 525 transitions. [2024-10-24 12:01:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 12:01:31,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:31,371 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:31,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 12:01:31,371 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:31,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash 206801043, now seen corresponding path program 1 times [2024-10-24 12:01:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:31,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470889914] [2024-10-24 12:01:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:31,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:31,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470889914] [2024-10-24 12:01:31,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470889914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:31,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:31,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 12:01:31,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385835292] [2024-10-24 12:01:31,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:31,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 12:01:31,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:31,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 12:01:31,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 12:01:31,901 INFO L87 Difference]: Start difference. First operand 363 states and 525 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:01:32,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:32,235 INFO L93 Difference]: Finished difference Result 614 states and 888 transitions. [2024-10-24 12:01:32,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:01:32,235 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-24 12:01:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:32,237 INFO L225 Difference]: With dead ends: 614 [2024-10-24 12:01:32,238 INFO L226 Difference]: Without dead ends: 404 [2024-10-24 12:01:32,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:01:32,239 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 339 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:32,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 469 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:01:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-24 12:01:32,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 365. [2024-10-24 12:01:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 318 states have (on average 1.3930817610062893) internal successors, (443), 319 states have internal predecessors, (443), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 12:01:32,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 527 transitions. [2024-10-24 12:01:32,278 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 527 transitions. Word has length 148 [2024-10-24 12:01:32,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:32,279 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 527 transitions. [2024-10-24 12:01:32,279 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), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 12:01:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 527 transitions. [2024-10-24 12:01:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 12:01:32,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:32,280 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:32,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 12:01:32,281 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:32,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash 78125868, now seen corresponding path program 1 times [2024-10-24 12:01:32,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:32,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096420671] [2024-10-24 12:01:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 12:01:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 12:01:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 12:01:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 12:01:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:01:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 12:01:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096420671] [2024-10-24 12:01:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096420671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:33,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:33,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 12:01:33,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661861561] [2024-10-24 12:01:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:33,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 12:01:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 12:01:33,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:01:33,645 INFO L87 Difference]: Start difference. First operand 365 states and 527 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19)