./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-61.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-61.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 c6dac1e5238ed53a380160bb79ff5b6b2442b7be93876c5524c1d6a035c6da2a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:01:01,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:01:01,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:01:01,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:01:01,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:01:01,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:01:01,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:01:01,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:01:01,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:01:01,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:01:01,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:01:01,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:01:01,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:01:01,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:01:01,557 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:01:01,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:01:01,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:01:01,560 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:01:01,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:01:01,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:01:01,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:01:01,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:01:01,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:01:01,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:01:01,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:01:01,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:01:01,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:01:01,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:01:01,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:01:01,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:01:01,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:01:01,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:01:01,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:01:01,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:01:01,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:01:01,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:01:01,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:01:01,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6dac1e5238ed53a380160bb79ff5b6b2442b7be93876c5524c1d6a035c6da2a [2024-10-24 12:01:01,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:01:01,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:01:01,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:01:01,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:01:01,833 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:01:01,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-61.i [2024-10-24 12:01:03,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:01:03,445 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:01:03,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-61.i [2024-10-24 12:01:03,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b3fa689/139906e60c9a4e718954c6a637774522/FLAG4e12c0c75 [2024-10-24 12:01:03,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b3fa689/139906e60c9a4e718954c6a637774522 [2024-10-24 12:01:03,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:01:03,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:01:03,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:01:03,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:01:03,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:01:03,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:03,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccb60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03, skipping insertion in model container [2024-10-24 12:01:03,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:03,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:01:03,675 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-61.i[917,930] [2024-10-24 12:01:03,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:01:03,762 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:01:03,773 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-61.i[917,930] [2024-10-24 12:01:03,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:01:03,886 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:01:03,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03 WrapperNode [2024-10-24 12:01:03,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:01:03,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:01:03,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:01:03,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:01:03,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:03,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:03,984 INFO L138 Inliner]: procedures = 29, calls = 184, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 522 [2024-10-24 12:01:03,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:01:03,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:01:03,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:01:03,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:01:03,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:03,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,042 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 22 initializations are split as follows [2, 20]. The 23 writes are split as follows [0, 23]. [2024-10-24 12:01:04,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:01:04,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:01:04,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:01:04,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:01:04,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (1/1) ... [2024-10-24 12:01:04,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:01:04,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:01:04,116 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 12:01:04,119 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 12:01:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:01:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 12:01:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 12:01:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:01:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:01:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 12:01:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:01:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:01:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:01:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:01:04,281 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:01:04,283 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:01:04,736 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2024-10-24 12:01:04,736 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:01:04,768 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:01:04,768 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 12:01:04,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:01:04 BoogieIcfgContainer [2024-10-24 12:01:04,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:01:04,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:01:04,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:01:04,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:01:04,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:01:03" (1/3) ... [2024-10-24 12:01:04,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f2cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:01:04, skipping insertion in model container [2024-10-24 12:01:04,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:01:03" (2/3) ... [2024-10-24 12:01:04,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f2cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:01:04, skipping insertion in model container [2024-10-24 12:01:04,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:01:04" (3/3) ... [2024-10-24 12:01:04,777 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-61.i [2024-10-24 12:01:04,790 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:01:04,791 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:01:04,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:01:04,861 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;@737332ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:01:04,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:01:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 85 states have (on average 1.388235294117647) internal successors, (118), 86 states have internal predecessors, (118), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:04,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:04,883 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:04,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:04,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:04,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1897595223, now seen corresponding path program 1 times [2024-10-24 12:01:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:04,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379129143] [2024-10-24 12:01:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-24 12:01:05,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:05,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379129143] [2024-10-24 12:01:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379129143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:01:05,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102687233] [2024-10-24 12:01:05,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:05,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:01:05,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:05,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:01:05,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:01:05,393 INFO L87 Difference]: Start difference. First operand has 113 states, 85 states have (on average 1.388235294117647) internal successors, (118), 86 states have internal predecessors, (118), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-24 12:01:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:05,440 INFO L93 Difference]: Finished difference Result 223 states and 359 transitions. [2024-10-24 12:01:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:01:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) Word has length 185 [2024-10-24 12:01:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:05,452 INFO L225 Difference]: With dead ends: 223 [2024-10-24 12:01:05,452 INFO L226 Difference]: Without dead ends: 111 [2024-10-24 12:01:05,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 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 12:01:05,461 INFO L432 NwaCegarLoop]: 159 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, 159 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 12:01:05,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:01:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-24 12:01:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-10-24 12:01:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 84 states have internal predecessors, (113), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-10-24 12:01:05,500 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 185 [2024-10-24 12:01:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:05,501 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-10-24 12:01:05,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-24 12:01:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-10-24 12:01:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:05,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:05,504 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:05,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:01:05,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:05,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 484150551, now seen corresponding path program 1 times [2024-10-24 12:01:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:05,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969531783] [2024-10-24 12:01:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:05,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-24 12:01:05,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:05,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969531783] [2024-10-24 12:01:05,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969531783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:05,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:05,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:01:05,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734914667] [2024-10-24 12:01:05,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:05,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:01:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:01:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:01:05,949 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:05,995 INFO L93 Difference]: Finished difference Result 224 states and 329 transitions. [2024-10-24 12:01:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:01:05,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 185 [2024-10-24 12:01:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:05,998 INFO L225 Difference]: With dead ends: 224 [2024-10-24 12:01:05,999 INFO L226 Difference]: Without dead ends: 114 [2024-10-24 12:01:06,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:01:06,001 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:06,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:01:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-24 12:01:06,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-10-24 12:01:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2024-10-24 12:01:06,014 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 185 [2024-10-24 12:01:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:06,016 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2024-10-24 12:01:06,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2024-10-24 12:01:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:06,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:06,021 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:06,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:01:06,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:06,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash -325196075, now seen corresponding path program 1 times [2024-10-24 12:01:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116230569] [2024-10-24 12:01:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:06,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:06,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-24 12:01:06,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:06,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116230569] [2024-10-24 12:01:06,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116230569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:06,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:01:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886579707] [2024-10-24 12:01:06,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:06,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:01:06,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:06,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:01:06,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:01:06,303 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:06,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:06,351 INFO L93 Difference]: Finished difference Result 228 states and 333 transitions. [2024-10-24 12:01:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:01:06,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 185 [2024-10-24 12:01:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:06,354 INFO L225 Difference]: With dead ends: 228 [2024-10-24 12:01:06,354 INFO L226 Difference]: Without dead ends: 116 [2024-10-24 12:01:06,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:01:06,355 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:06,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 465 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:01:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-24 12:01:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2024-10-24 12:01:06,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 88 states have internal predecessors, (117), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 167 transitions. [2024-10-24 12:01:06,375 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 167 transitions. Word has length 185 [2024-10-24 12:01:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:06,375 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 167 transitions. [2024-10-24 12:01:06,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 167 transitions. [2024-10-24 12:01:06,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:06,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:06,381 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:06,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:01:06,381 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:06,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -325136493, now seen corresponding path program 1 times [2024-10-24 12:01:06,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:06,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021360277] [2024-10-24 12:01:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:06,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-24 12:01:07,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021360277] [2024-10-24 12:01:07,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021360277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:07,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:07,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:01:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559926802] [2024-10-24 12:01:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:01:07,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:01:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:01:07,279 INFO L87 Difference]: Start difference. First operand 115 states and 167 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:07,568 INFO L93 Difference]: Finished difference Result 235 states and 341 transitions. [2024-10-24 12:01:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:01:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 185 [2024-10-24 12:01:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:07,571 INFO L225 Difference]: With dead ends: 235 [2024-10-24 12:01:07,572 INFO L226 Difference]: Without dead ends: 121 [2024-10-24 12:01:07,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 12:01:07,574 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:07,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 397 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:01:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-24 12:01:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2024-10-24 12:01:07,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 90 states have internal predecessors, (119), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 169 transitions. [2024-10-24 12:01:07,591 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 169 transitions. Word has length 185 [2024-10-24 12:01:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:07,591 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 169 transitions. [2024-10-24 12:01:07,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-10-24 12:01:07,592 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 169 transitions. [2024-10-24 12:01:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:07,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:07,595 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:07,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:01:07,595 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:07,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -834609583, now seen corresponding path program 1 times [2024-10-24 12:01:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:07,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749380010] [2024-10-24 12:01:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:08,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-24 12:01:09,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:09,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749380010] [2024-10-24 12:01:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749380010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:01:09,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:01:09,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 12:01:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949013720] [2024-10-24 12:01:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:01:09,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:01:09,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:01:09,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:01:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:01:09,015 INFO L87 Difference]: Start difference. First operand 117 states and 169 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-24 12:01:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:01:09,491 INFO L93 Difference]: Finished difference Result 279 states and 402 transitions. [2024-10-24 12:01:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:01:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 185 [2024-10-24 12:01:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:01:09,495 INFO L225 Difference]: With dead ends: 279 [2024-10-24 12:01:09,495 INFO L226 Difference]: Without dead ends: 163 [2024-10-24 12:01:09,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 12:01:09,497 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 228 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:01:09,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 527 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 12:01:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-24 12:01:09,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 126. [2024-10-24 12:01:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 99 states have (on average 1.3333333333333333) internal successors, (132), 99 states have internal predecessors, (132), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 12:01:09,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2024-10-24 12:01:09,513 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 182 transitions. Word has length 185 [2024-10-24 12:01:09,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:01:09,514 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-10-24 12:01:09,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-24 12:01:09,514 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 182 transitions. [2024-10-24 12:01:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 12:01:09,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:01:09,516 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:09,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:01:09,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:01:09,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:01:09,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1872009811, now seen corresponding path program 1 times [2024-10-24 12:01:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:01:09,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985129443] [2024-10-24 12:01:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:01:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:01:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:01:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:01:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:01:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:01:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:01:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:01:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:01:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:01:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:01:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:01:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:01:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:01:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:01:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:01:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:01:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:01:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:01:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:01:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:01:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:01:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:01:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:01:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 12:01:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:01:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2024-10-24 12:01:15,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:01:15,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985129443] [2024-10-24 12:01:15,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985129443] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:01:15,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281825782] [2024-10-24 12:01:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:01:15,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:01:15,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:01:15,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:01:15,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 12:01:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:01:16,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-10-24 12:01:16,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:01:17,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 12:01:18,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:19,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:20,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:21,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:21,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:22,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:23,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:23,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:24,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:24,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-24 12:01:25,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 12:01:25,856 INFO L349 Elim1Store]: treesize reduction 217, result has 46.9 percent of original size [2024-10-24 12:01:25,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 61 treesize of output 228