./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-12.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 6426d30449276f41292d944281f990de88775c0c256461a4ce5af87d5d4d093f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 07:06:03,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 07:06:03,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 07:06:03,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 07:06:03,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 07:06:03,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 07:06:03,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 07:06:03,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 07:06:03,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 07:06:03,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 07:06:03,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 07:06:03,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 07:06:03,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 07:06:03,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 07:06:03,584 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 07:06:03,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 07:06:03,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 07:06:03,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 07:06:03,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 07:06:03,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 07:06:03,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 07:06:03,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 07:06:03,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 07:06:03,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 07:06:03,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 07:06:03,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 07:06:03,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 07:06:03,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 07:06:03,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 07:06:03,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 07:06:03,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 07:06:03,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 07:06:03,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:06:03,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 07:06:03,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 07:06:03,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 07:06:03,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 07:06:03,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 07:06:03,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 07:06:03,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 07:06:03,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 07:06:03,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 07:06:03,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6426d30449276f41292d944281f990de88775c0c256461a4ce5af87d5d4d093f [2024-11-12 07:06:03,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 07:06:03,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 07:06:03,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 07:06:03,868 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 07:06:03,869 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 07:06:03,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-12.i [2024-11-12 07:06:05,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 07:06:05,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 07:06:05,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-12.i [2024-11-12 07:06:05,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66a4bc550/4d8b6fbf6b614f089881afa6b1651f6a/FLAG67f33e620 [2024-11-12 07:06:05,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66a4bc550/4d8b6fbf6b614f089881afa6b1651f6a [2024-11-12 07:06:05,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 07:06:05,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 07:06:05,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 07:06:05,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 07:06:05,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 07:06:05,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:05,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc2dda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05, skipping insertion in model container [2024-11-12 07:06:05,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:05,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 07:06:05,832 WARN L250 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-a_file-12.i[916,929] [2024-11-12 07:06:05,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:06:05,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 07:06:05,898 WARN L250 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-a_file-12.i[916,929] [2024-11-12 07:06:05,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:06:05,968 INFO L204 MainTranslator]: Completed translation [2024-11-12 07:06:05,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05 WrapperNode [2024-11-12 07:06:05,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 07:06:05,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 07:06:05,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 07:06:05,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 07:06:05,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:05,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,023 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 447 [2024-11-12 07:06:06,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 07:06:06,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 07:06:06,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 07:06:06,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 07:06:06,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,065 INFO L175 MemorySlicer]: Split 123 memory accesses to 4 slices as follows [2, 38, 12, 71]. 58 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 2, 4]. The 14 writes are split as follows [0, 8, 2, 4]. [2024-11-12 07:06:06,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 07:06:06,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 07:06:06,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 07:06:06,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 07:06:06,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (1/1) ... [2024-11-12 07:06:06,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:06:06,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:06,150 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) [2024-11-12 07:06:06,157 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 [2024-11-12 07:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 07:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 07:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 07:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 07:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 07:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 07:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 07:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 07:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 07:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 07:06:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 07:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 07:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 07:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 07:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 07:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 07:06:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 07:06:06,299 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 07:06:06,301 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 07:06:06,652 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-12 07:06:06,652 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 07:06:06,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 07:06:06,668 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 07:06:06,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:06:06 BoogieIcfgContainer [2024-11-12 07:06:06,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 07:06:06,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 07:06:06,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 07:06:06,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 07:06:06,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:06:05" (1/3) ... [2024-11-12 07:06:06,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd96414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:06:06, skipping insertion in model container [2024-11-12 07:06:06,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:06:05" (2/3) ... [2024-11-12 07:06:06,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd96414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:06:06, skipping insertion in model container [2024-11-12 07:06:06,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:06:06" (3/3) ... [2024-11-12 07:06:06,676 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-12.i [2024-11-12 07:06:06,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 07:06:06,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 07:06:06,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 07:06:06,744 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;@7e39b8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 07:06:06,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 07:06:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:06,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-12 07:06:06,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:06,761 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:06,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:06,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:06,769 INFO L85 PathProgramCache]: Analyzing trace with hash -571948604, now seen corresponding path program 1 times [2024-11-12 07:06:06,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:06,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432089322] [2024-11-12 07:06:06,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:07,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:07,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432089322] [2024-11-12 07:06:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432089322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:07,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 07:06:07,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051853063] [2024-11-12 07:06:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:07,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 07:06:07,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 07:06:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:06:07,194 INFO L87 Difference]: Start difference. First operand has 98 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:07,224 INFO L93 Difference]: Finished difference Result 183 states and 284 transitions. [2024-11-12 07:06:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 07:06:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-12 07:06:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:07,236 INFO L225 Difference]: With dead ends: 183 [2024-11-12 07:06:07,236 INFO L226 Difference]: Without dead ends: 88 [2024-11-12 07:06:07,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:06:07,242 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:07,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-12 07:06:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-12 07:06:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-11-12 07:06:07,281 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 117 [2024-11-12 07:06:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:07,282 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-12 07:06:07,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-11-12 07:06:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-12 07:06:07,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:07,285 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:07,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 07:06:07,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:07,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash 760381860, now seen corresponding path program 1 times [2024-11-12 07:06:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:07,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826621379] [2024-11-12 07:06:07,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:07,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826621379] [2024-11-12 07:06:07,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826621379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:07,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:07,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:06:07,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568269744] [2024-11-12 07:06:07,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:07,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:06:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:06:07,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:06:07,709 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:07,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:07,781 INFO L93 Difference]: Finished difference Result 173 states and 243 transitions. [2024-11-12 07:06:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:06:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-12 07:06:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:07,785 INFO L225 Difference]: With dead ends: 173 [2024-11-12 07:06:07,785 INFO L226 Difference]: Without dead ends: 88 [2024-11-12 07:06:07,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:06:07,788 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:07,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-12 07:06:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-12 07:06:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2024-11-12 07:06:07,802 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 117 [2024-11-12 07:06:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:07,804 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2024-11-12 07:06:07,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2024-11-12 07:06:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-12 07:06:07,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:07,807 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:07,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 07:06:07,808 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:07,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash -124307358, now seen corresponding path program 1 times [2024-11-12 07:06:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:07,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518286539] [2024-11-12 07:06:07,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:08,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518286539] [2024-11-12 07:06:08,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518286539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:08,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:08,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291119438] [2024-11-12 07:06:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:08,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:08,062 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:08,095 INFO L93 Difference]: Finished difference Result 176 states and 245 transitions. [2024-11-12 07:06:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:08,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-12 07:06:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:08,097 INFO L225 Difference]: With dead ends: 176 [2024-11-12 07:06:08,097 INFO L226 Difference]: Without dead ends: 91 [2024-11-12 07:06:08,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:08,099 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:08,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 461 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-12 07:06:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-12 07:06:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2024-11-12 07:06:08,114 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 119 [2024-11-12 07:06:08,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:08,114 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2024-11-12 07:06:08,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2024-11-12 07:06:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-12 07:06:08,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:08,116 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:08,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 07:06:08,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:08,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:08,117 INFO L85 PathProgramCache]: Analyzing trace with hash -233055546, now seen corresponding path program 1 times [2024-11-12 07:06:08,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:08,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938091647] [2024-11-12 07:06:08,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:08,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:09,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938091647] [2024-11-12 07:06:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938091647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:09,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:09,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 07:06:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309714084] [2024-11-12 07:06:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:09,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:06:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:06:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:06:09,123 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:09,315 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2024-11-12 07:06:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:06:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2024-11-12 07:06:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:09,318 INFO L225 Difference]: With dead ends: 133 [2024-11-12 07:06:09,319 INFO L226 Difference]: Without dead ends: 131 [2024-11-12 07:06:09,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:06:09,320 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 36 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:09,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 767 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-12 07:06:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2024-11-12 07:06:09,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 98 states have internal predecessors, (125), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:09,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2024-11-12 07:06:09,328 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 121 [2024-11-12 07:06:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:09,328 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2024-11-12 07:06:09,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:09,329 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2024-11-12 07:06:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-12 07:06:09,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:09,332 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:09,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 07:06:09,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:09,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash 44675301, now seen corresponding path program 1 times [2024-11-12 07:06:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597917625] [2024-11-12 07:06:09,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-12 07:06:10,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:10,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597917625] [2024-11-12 07:06:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597917625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653862959] [2024-11-12 07:06:10,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:10,945 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) [2024-11-12 07:06:10,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 07:06:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:11,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-12 07:06:11,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:11,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-12 07:06:11,334 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 31 treesize of output 15 [2024-11-12 07:06:11,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:11,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-12 07:06:12,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:12,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2024-11-12 07:06:12,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:12,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 40 [2024-11-12 07:06:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 72 proven. 144 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 07:06:12,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:13,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-12 07:06:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-12 07:06:13,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653862959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:13,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:13,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 23] total 46 [2024-11-12 07:06:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746881653] [2024-11-12 07:06:13,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:13,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-12 07:06:13,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:13,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-12 07:06:13,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1736, Unknown=0, NotChecked=0, Total=2070 [2024-11-12 07:06:13,251 INFO L87 Difference]: Start difference. First operand 116 states and 157 transitions. Second operand has 46 states, 36 states have (on average 3.888888888888889) internal successors, (140), 41 states have internal predecessors, (140), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-12 07:06:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:14,347 INFO L93 Difference]: Finished difference Result 191 states and 241 transitions. [2024-11-12 07:06:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-12 07:06:14,348 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 36 states have (on average 3.888888888888889) internal successors, (140), 41 states have internal predecessors, (140), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) Word has length 122 [2024-11-12 07:06:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:14,350 INFO L225 Difference]: With dead ends: 191 [2024-11-12 07:06:14,350 INFO L226 Difference]: Without dead ends: 189 [2024-11-12 07:06:14,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 245 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=725, Invalid=3057, Unknown=0, NotChecked=0, Total=3782 [2024-11-12 07:06:14,353 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 324 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:14,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 2035 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:06:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-12 07:06:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 132. [2024-11-12 07:06:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.2454545454545454) internal successors, (137), 110 states have internal predecessors, (137), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2024-11-12 07:06:14,374 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 122 [2024-11-12 07:06:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:14,375 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2024-11-12 07:06:14,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 36 states have (on average 3.888888888888889) internal successors, (140), 41 states have internal predecessors, (140), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-12 07:06:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2024-11-12 07:06:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-12 07:06:14,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:14,376 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:14,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 07:06:14,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:14,578 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:14,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:14,578 INFO L85 PathProgramCache]: Analyzing trace with hash 972179707, now seen corresponding path program 1 times [2024-11-12 07:06:14,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:14,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086505929] [2024-11-12 07:06:14,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:14,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-12 07:06:15,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086505929] [2024-11-12 07:06:15,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086505929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582097064] [2024-11-12 07:06:15,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:15,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:15,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:15,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:15,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 07:06:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:15,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-12 07:06:15,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:15,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-12 07:06:16,059 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 31 treesize of output 15 [2024-11-12 07:06:16,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:16,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-12 07:06:16,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:16,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2024-11-12 07:06:16,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:16,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 36 [2024-11-12 07:06:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 72 proven. 144 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 07:06:16,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-12 07:06:17,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582097064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:17,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:17,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 27, 26] total 53 [2024-11-12 07:06:17,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077452581] [2024-11-12 07:06:17,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:17,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-12 07:06:17,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:17,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-12 07:06:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=2338, Unknown=0, NotChecked=0, Total=2756 [2024-11-12 07:06:17,903 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand has 53 states, 43 states have (on average 3.441860465116279) internal successors, (148), 48 states have internal predecessors, (148), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-12 07:06:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:19,446 INFO L93 Difference]: Finished difference Result 215 states and 266 transitions. [2024-11-12 07:06:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-12 07:06:19,447 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 43 states have (on average 3.441860465116279) internal successors, (148), 48 states have internal predecessors, (148), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) Word has length 123 [2024-11-12 07:06:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:19,448 INFO L225 Difference]: With dead ends: 215 [2024-11-12 07:06:19,448 INFO L226 Difference]: Without dead ends: 213 [2024-11-12 07:06:19,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 242 SyntacticMatches, 5 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1787 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1060, Invalid=5420, Unknown=0, NotChecked=0, Total=6480 [2024-11-12 07:06:19,450 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 527 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:19,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1963 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:06:19,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-12 07:06:19,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 134. [2024-11-12 07:06:19,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.25) internal successors, (140), 112 states have internal predecessors, (140), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:19,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2024-11-12 07:06:19,460 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 123 [2024-11-12 07:06:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:19,460 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2024-11-12 07:06:19,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 43 states have (on average 3.441860465116279) internal successors, (148), 48 states have internal predecessors, (148), 13 states have call successors, (47), 5 states have call predecessors, (47), 10 states have return successors, (47), 8 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-12 07:06:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2024-11-12 07:06:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-12 07:06:19,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:19,462 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:19,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 07:06:19,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-12 07:06:19,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:19,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash -959553979, now seen corresponding path program 1 times [2024-11-12 07:06:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:19,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651271156] [2024-11-12 07:06:19,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:19,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651271156] [2024-11-12 07:06:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651271156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:19,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:19,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227122220] [2024-11-12 07:06:19,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:19,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:19,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:19,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:19,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:19,769 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:19,827 INFO L93 Difference]: Finished difference Result 347 states and 436 transitions. [2024-11-12 07:06:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:19,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-11-12 07:06:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:19,829 INFO L225 Difference]: With dead ends: 347 [2024-11-12 07:06:19,829 INFO L226 Difference]: Without dead ends: 216 [2024-11-12 07:06:19,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:19,830 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 54 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:19,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 510 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:19,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-12 07:06:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 213. [2024-11-12 07:06:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 180 states have (on average 1.2166666666666666) internal successors, (219), 181 states have internal predecessors, (219), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 07:06:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 263 transitions. [2024-11-12 07:06:19,843 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 263 transitions. Word has length 124 [2024-11-12 07:06:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:19,843 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 263 transitions. [2024-11-12 07:06:19,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:19,843 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 263 transitions. [2024-11-12 07:06:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-12 07:06:19,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:19,845 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:19,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 07:06:19,845 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:19,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1108535968, now seen corresponding path program 1 times [2024-11-12 07:06:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717545106] [2024-11-12 07:06:19,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:19,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-12 07:06:20,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717545106] [2024-11-12 07:06:20,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717545106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776852865] [2024-11-12 07:06:20,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:20,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:20,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:20,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:20,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 07:06:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:20,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 07:06:20,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:20,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2024-11-12 07:06:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 30 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-12 07:06:20,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-12 07:06:20,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776852865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:20,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-12 07:06:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112186678] [2024-11-12 07:06:20,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:20,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:06:20,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:06:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:20,526 INFO L87 Difference]: Start difference. First operand 213 states and 263 transitions. Second operand has 11 states, 8 states have (on average 7.25) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-12 07:06:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:20,731 INFO L93 Difference]: Finished difference Result 433 states and 532 transitions. [2024-11-12 07:06:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:06:20,732 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.25) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) Word has length 124 [2024-11-12 07:06:20,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:20,735 INFO L225 Difference]: With dead ends: 433 [2024-11-12 07:06:20,735 INFO L226 Difference]: Without dead ends: 223 [2024-11-12 07:06:20,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:06:20,737 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 69 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:20,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 386 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-12 07:06:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 159. [2024-11-12 07:06:20,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.2205882352941178) internal successors, (166), 136 states have internal predecessors, (166), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 198 transitions. [2024-11-12 07:06:20,749 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 198 transitions. Word has length 124 [2024-11-12 07:06:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:20,750 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 198 transitions. [2024-11-12 07:06:20,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.25) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-12 07:06:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 198 transitions. [2024-11-12 07:06:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-12 07:06:20,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:20,751 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:20,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 07:06:20,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:20,952 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:20,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1994128982, now seen corresponding path program 1 times [2024-11-12 07:06:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:20,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19504021] [2024-11-12 07:06:20,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-12 07:06:21,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:21,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19504021] [2024-11-12 07:06:21,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19504021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:21,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290340005] [2024-11-12 07:06:21,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:21,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:21,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:21,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:21,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 07:06:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:21,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 07:06:21,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:21,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:21,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2024-11-12 07:06:21,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:21,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 26 [2024-11-12 07:06:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 30 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-12 07:06:21,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-12 07:06:21,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290340005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:21,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 12 [2024-11-12 07:06:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338301241] [2024-11-12 07:06:21,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:21,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 07:06:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 07:06:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:06:21,777 INFO L87 Difference]: Start difference. First operand 159 states and 198 transitions. Second operand has 12 states, 9 states have (on average 8.0) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-12 07:06:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:21,996 INFO L93 Difference]: Finished difference Result 367 states and 455 transitions. [2024-11-12 07:06:21,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 07:06:21,996 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.0) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) Word has length 125 [2024-11-12 07:06:21,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:21,998 INFO L225 Difference]: With dead ends: 367 [2024-11-12 07:06:21,998 INFO L226 Difference]: Without dead ends: 211 [2024-11-12 07:06:21,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-12 07:06:22,002 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 193 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:22,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 463 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-12 07:06:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 159. [2024-11-12 07:06:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.213235294117647) internal successors, (165), 136 states have internal predecessors, (165), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-12 07:06:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2024-11-12 07:06:22,010 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 197 transitions. Word has length 125 [2024-11-12 07:06:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:22,010 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 197 transitions. [2024-11-12 07:06:22,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.0) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-12 07:06:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2024-11-12 07:06:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-12 07:06:22,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:22,011 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:22,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 07:06:22,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:22,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:22,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:22,214 INFO L85 PathProgramCache]: Analyzing trace with hash 220271354, now seen corresponding path program 1 times [2024-11-12 07:06:22,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:22,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937787057] [2024-11-12 07:06:22,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:22,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:22,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397256688] [2024-11-12 07:06:22,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:22,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:22,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:22,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:22,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 07:06:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:22,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 07:06:22,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:22,638 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 23 treesize of output 11 [2024-11-12 07:06:22,680 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 23 treesize of output 11 [2024-11-12 07:06:22,715 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 23 treesize of output 11 [2024-11-12 07:06:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:22,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:22,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:22,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937787057] [2024-11-12 07:06:22,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397256688] [2024-11-12 07:06:22,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397256688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:22,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:22,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 07:06:22,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501089157] [2024-11-12 07:06:22,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:22,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:06:22,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:22,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:06:22,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:06:22,764 INFO L87 Difference]: Start difference. First operand 159 states and 197 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:22,844 INFO L93 Difference]: Finished difference Result 417 states and 513 transitions. [2024-11-12 07:06:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:06:22,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-11-12 07:06:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:22,846 INFO L225 Difference]: With dead ends: 417 [2024-11-12 07:06:22,846 INFO L226 Difference]: Without dead ends: 261 [2024-11-12 07:06:22,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:22,846 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 48 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:22,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 279 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-12 07:06:22,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 249. [2024-11-12 07:06:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 204 states have (on average 1.1715686274509804) internal successors, (239), 204 states have internal predecessors, (239), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 303 transitions. [2024-11-12 07:06:22,865 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 303 transitions. Word has length 126 [2024-11-12 07:06:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:22,868 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 303 transitions. [2024-11-12 07:06:22,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 303 transitions. [2024-11-12 07:06:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-12 07:06:22,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:22,870 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:22,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 07:06:23,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-12 07:06:23,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:23,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:23,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2052560144, now seen corresponding path program 1 times [2024-11-12 07:06:23,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:23,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935685348] [2024-11-12 07:06:23,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:23,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198338599] [2024-11-12 07:06:23,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:23,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:23,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:23,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:23,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 07:06:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 07:06:23,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:23,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2024-11-12 07:06:23,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-12 07:06:23,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-12 07:06:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:23,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:23,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935685348] [2024-11-12 07:06:23,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198338599] [2024-11-12 07:06:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198338599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:23,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:23,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 07:06:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139206503] [2024-11-12 07:06:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:23,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:06:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:23,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:06:23,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:06:23,396 INFO L87 Difference]: Start difference. First operand 249 states and 303 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:23,471 INFO L93 Difference]: Finished difference Result 493 states and 603 transitions. [2024-11-12 07:06:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:06:23,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-12 07:06:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:23,474 INFO L225 Difference]: With dead ends: 493 [2024-11-12 07:06:23,474 INFO L226 Difference]: Without dead ends: 247 [2024-11-12 07:06:23,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:23,475 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 22 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:23,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 277 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:23,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-12 07:06:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 240. [2024-11-12 07:06:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 195 states have (on average 1.1641025641025642) internal successors, (227), 195 states have internal predecessors, (227), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 291 transitions. [2024-11-12 07:06:23,489 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 291 transitions. Word has length 127 [2024-11-12 07:06:23,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:23,489 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 291 transitions. [2024-11-12 07:06:23,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 291 transitions. [2024-11-12 07:06:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:23,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:23,490 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:23,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 07:06:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:23,691 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:23,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1660078417, now seen corresponding path program 1 times [2024-11-12 07:06:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220119896] [2024-11-12 07:06:23,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:23,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:23,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220119896] [2024-11-12 07:06:23,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220119896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:23,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:23,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075629222] [2024-11-12 07:06:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:23,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:23,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:23,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:23,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:23,984 INFO L87 Difference]: Start difference. First operand 240 states and 291 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:24,054 INFO L93 Difference]: Finished difference Result 398 states and 489 transitions. [2024-11-12 07:06:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-12 07:06:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:24,056 INFO L225 Difference]: With dead ends: 398 [2024-11-12 07:06:24,056 INFO L226 Difference]: Without dead ends: 242 [2024-11-12 07:06:24,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:24,057 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:24,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-12 07:06:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-12 07:06:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 197 states have (on average 1.16751269035533) internal successors, (230), 197 states have internal predecessors, (230), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 294 transitions. [2024-11-12 07:06:24,071 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 294 transitions. Word has length 129 [2024-11-12 07:06:24,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:24,071 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 294 transitions. [2024-11-12 07:06:24,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 294 transitions. [2024-11-12 07:06:24,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:24,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:24,072 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:24,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 07:06:24,073 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:24,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1794091923, now seen corresponding path program 1 times [2024-11-12 07:06:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:24,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503602194] [2024-11-12 07:06:24,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:24,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503602194] [2024-11-12 07:06:24,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503602194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:24,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:24,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 07:06:24,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813617192] [2024-11-12 07:06:24,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:24,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:06:24,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:24,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:06:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:06:24,605 INFO L87 Difference]: Start difference. First operand 242 states and 294 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:24,893 INFO L93 Difference]: Finished difference Result 564 states and 684 transitions. [2024-11-12 07:06:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:06:24,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:24,896 INFO L225 Difference]: With dead ends: 564 [2024-11-12 07:06:24,896 INFO L226 Difference]: Without dead ends: 406 [2024-11-12 07:06:24,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:06:24,898 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 81 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:24,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 597 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-12 07:06:24,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 402. [2024-11-12 07:06:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 325 states have (on average 1.1630769230769231) internal successors, (378), 327 states have internal predecessors, (378), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 482 transitions. [2024-11-12 07:06:24,925 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 482 transitions. Word has length 129 [2024-11-12 07:06:24,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:24,925 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 482 transitions. [2024-11-12 07:06:24,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:24,925 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 482 transitions. [2024-11-12 07:06:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:24,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:24,926 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:24,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 07:06:24,926 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:24,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1535926485, now seen corresponding path program 1 times [2024-11-12 07:06:24,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:24,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364969663] [2024-11-12 07:06:24,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:25,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364969663] [2024-11-12 07:06:25,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364969663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:25,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:25,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:06:25,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146819798] [2024-11-12 07:06:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:25,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:25,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:25,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:25,159 INFO L87 Difference]: Start difference. First operand 402 states and 482 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:25,385 INFO L93 Difference]: Finished difference Result 825 states and 995 transitions. [2024-11-12 07:06:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:25,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-12 07:06:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:25,388 INFO L225 Difference]: With dead ends: 825 [2024-11-12 07:06:25,388 INFO L226 Difference]: Without dead ends: 552 [2024-11-12 07:06:25,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:25,389 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 65 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:25,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 492 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:25,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-12 07:06:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 402. [2024-11-12 07:06:25,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 325 states have (on average 1.156923076923077) internal successors, (376), 327 states have internal predecessors, (376), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 480 transitions. [2024-11-12 07:06:25,415 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 480 transitions. Word has length 129 [2024-11-12 07:06:25,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:25,416 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 480 transitions. [2024-11-12 07:06:25,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 480 transitions. [2024-11-12 07:06:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:25,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:25,417 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:25,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 07:06:25,417 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:25,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:25,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1928953495, now seen corresponding path program 1 times [2024-11-12 07:06:25,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:25,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450901336] [2024-11-12 07:06:25,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:25,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:26,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:26,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450901336] [2024-11-12 07:06:26,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450901336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:26,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:26,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:06:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430790212] [2024-11-12 07:06:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:26,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:06:26,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:26,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:06:26,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:06:26,047 INFO L87 Difference]: Start difference. First operand 402 states and 480 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:26,503 INFO L93 Difference]: Finished difference Result 786 states and 945 transitions. [2024-11-12 07:06:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:06:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:26,506 INFO L225 Difference]: With dead ends: 786 [2024-11-12 07:06:26,506 INFO L226 Difference]: Without dead ends: 513 [2024-11-12 07:06:26,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:26,507 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 70 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:26,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1021 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 07:06:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-12 07:06:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 428. [2024-11-12 07:06:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 351 states have (on average 1.1595441595441596) internal successors, (407), 353 states have internal predecessors, (407), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 511 transitions. [2024-11-12 07:06:26,541 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 511 transitions. Word has length 129 [2024-11-12 07:06:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:26,541 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 511 transitions. [2024-11-12 07:06:26,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 511 transitions. [2024-11-12 07:06:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:26,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:26,543 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:26,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 07:06:26,543 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:26,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1687390910, now seen corresponding path program 1 times [2024-11-12 07:06:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:26,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66034819] [2024-11-12 07:06:26,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66034819] [2024-11-12 07:06:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66034819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:26,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:26,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:06:26,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031401554] [2024-11-12 07:06:26,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:26,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:06:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:26,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:06:26,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:26,903 INFO L87 Difference]: Start difference. First operand 428 states and 511 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:27,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:27,097 INFO L93 Difference]: Finished difference Result 795 states and 953 transitions. [2024-11-12 07:06:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:06:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-12 07:06:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:27,100 INFO L225 Difference]: With dead ends: 795 [2024-11-12 07:06:27,100 INFO L226 Difference]: Without dead ends: 496 [2024-11-12 07:06:27,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:06:27,101 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 64 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:27,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 565 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:27,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-12 07:06:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 428. [2024-11-12 07:06:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 351 states have (on average 1.1538461538461537) internal successors, (405), 353 states have internal predecessors, (405), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:27,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 509 transitions. [2024-11-12 07:06:27,128 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 509 transitions. Word has length 129 [2024-11-12 07:06:27,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:27,129 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 509 transitions. [2024-11-12 07:06:27,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 509 transitions. [2024-11-12 07:06:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:27,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:27,130 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:27,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 07:06:27,130 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:27,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2080417920, now seen corresponding path program 1 times [2024-11-12 07:06:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:27,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558537242] [2024-11-12 07:06:27,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:27,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558537242] [2024-11-12 07:06:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558537242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:28,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 07:06:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622318246] [2024-11-12 07:06:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:28,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 07:06:28,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 07:06:28,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2024-11-12 07:06:28,374 INFO L87 Difference]: Start difference. First operand 428 states and 509 transitions. Second operand has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 20 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:29,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:29,456 INFO L93 Difference]: Finished difference Result 812 states and 968 transitions. [2024-11-12 07:06:29,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-12 07:06:29,457 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 20 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-12 07:06:29,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:29,459 INFO L225 Difference]: With dead ends: 812 [2024-11-12 07:06:29,460 INFO L226 Difference]: Without dead ends: 513 [2024-11-12 07:06:29,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2024-11-12 07:06:29,461 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 71 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:29,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2083 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:06:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-12 07:06:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 434. [2024-11-12 07:06:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 357 states have (on average 1.1512605042016806) internal successors, (411), 359 states have internal predecessors, (411), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 515 transitions. [2024-11-12 07:06:29,492 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 515 transitions. Word has length 129 [2024-11-12 07:06:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:29,493 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 515 transitions. [2024-11-12 07:06:29,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 20 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:29,493 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 515 transitions. [2024-11-12 07:06:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:29,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:29,494 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:29,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 07:06:29,494 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:29,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1300069932, now seen corresponding path program 1 times [2024-11-12 07:06:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:29,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680286109] [2024-11-12 07:06:29,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:29,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680286109] [2024-11-12 07:06:29,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680286109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:29,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:29,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:06:29,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411137683] [2024-11-12 07:06:29,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:29,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:29,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:29,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:29,823 INFO L87 Difference]: Start difference. First operand 434 states and 515 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:30,037 INFO L93 Difference]: Finished difference Result 825 states and 983 transitions. [2024-11-12 07:06:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-12 07:06:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:30,039 INFO L225 Difference]: With dead ends: 825 [2024-11-12 07:06:30,039 INFO L226 Difference]: Without dead ends: 520 [2024-11-12 07:06:30,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:30,040 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 89 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:30,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 488 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-12 07:06:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 434. [2024-11-12 07:06:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 357 states have (on average 1.1484593837535013) internal successors, (410), 359 states have internal predecessors, (410), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 514 transitions. [2024-11-12 07:06:30,070 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 514 transitions. Word has length 129 [2024-11-12 07:06:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:30,070 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 514 transitions. [2024-11-12 07:06:30,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 514 transitions. [2024-11-12 07:06:30,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:30,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:30,071 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:30,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 07:06:30,071 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1434083438, now seen corresponding path program 1 times [2024-11-12 07:06:30,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:30,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012701669] [2024-11-12 07:06:30,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:30,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:30,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:30,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012701669] [2024-11-12 07:06:30,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012701669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:30,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:30,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-12 07:06:30,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638480379] [2024-11-12 07:06:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:30,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 07:06:30,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 07:06:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:06:30,765 INFO L87 Difference]: Start difference. First operand 434 states and 514 transitions. Second operand has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:31,384 INFO L93 Difference]: Finished difference Result 967 states and 1152 transitions. [2024-11-12 07:06:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 07:06:31,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:31,388 INFO L225 Difference]: With dead ends: 967 [2024-11-12 07:06:31,388 INFO L226 Difference]: Without dead ends: 662 [2024-11-12 07:06:31,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:06:31,389 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 84 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:31,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1964 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 07:06:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-12 07:06:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 471. [2024-11-12 07:06:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 394 states have (on average 1.1725888324873097) internal successors, (462), 396 states have internal predecessors, (462), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 566 transitions. [2024-11-12 07:06:31,422 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 566 transitions. Word has length 129 [2024-11-12 07:06:31,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:31,423 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 566 transitions. [2024-11-12 07:06:31,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 566 transitions. [2024-11-12 07:06:31,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:31,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:31,424 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:31,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 07:06:31,424 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:31,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:31,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1585547863, now seen corresponding path program 1 times [2024-11-12 07:06:31,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:31,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834131882] [2024-11-12 07:06:31,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:32,209 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:32,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:32,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834131882] [2024-11-12 07:06:32,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834131882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:32,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:32,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 07:06:32,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65787924] [2024-11-12 07:06:32,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:32,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:06:32,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:06:32,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:32,211 INFO L87 Difference]: Start difference. First operand 471 states and 566 transitions. Second operand has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:32,596 INFO L93 Difference]: Finished difference Result 895 states and 1079 transitions. [2024-11-12 07:06:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:06:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-12 07:06:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:32,599 INFO L225 Difference]: With dead ends: 895 [2024-11-12 07:06:32,599 INFO L226 Difference]: Without dead ends: 553 [2024-11-12 07:06:32,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:06:32,600 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 71 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:32,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 862 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:06:32,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-12 07:06:32,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 473. [2024-11-12 07:06:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 396 states have (on average 1.1717171717171717) internal successors, (464), 398 states have internal predecessors, (464), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 568 transitions. [2024-11-12 07:06:32,655 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 568 transitions. Word has length 129 [2024-11-12 07:06:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:32,656 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 568 transitions. [2024-11-12 07:06:32,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 568 transitions. [2024-11-12 07:06:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:32,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:32,657 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:32,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 07:06:32,658 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:32,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1722118031, now seen corresponding path program 1 times [2024-11-12 07:06:32,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:32,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083833103] [2024-11-12 07:06:32,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:32,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:33,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083833103] [2024-11-12 07:06:33,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083833103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:33,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:33,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 07:06:33,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178171321] [2024-11-12 07:06:33,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:33,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 07:06:33,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:33,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 07:06:33,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:06:33,497 INFO L87 Difference]: Start difference. First operand 473 states and 568 transitions. Second operand has 12 states, 8 states have (on average 6.5) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-12 07:06:34,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:34,081 INFO L93 Difference]: Finished difference Result 1019 states and 1228 transitions. [2024-11-12 07:06:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:06:34,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 6.5) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 5 states have call successors, (16) Word has length 129 [2024-11-12 07:06:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:34,084 INFO L225 Difference]: With dead ends: 1019 [2024-11-12 07:06:34,084 INFO L226 Difference]: Without dead ends: 675 [2024-11-12 07:06:34,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:06:34,086 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 78 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:34,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 910 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 07:06:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-12 07:06:34,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 499. [2024-11-12 07:06:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 422 states have (on average 1.1777251184834123) internal successors, (497), 424 states have internal predecessors, (497), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-12 07:06:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 601 transitions. [2024-11-12 07:06:34,147 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 601 transitions. Word has length 129 [2024-11-12 07:06:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:34,147 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 601 transitions. [2024-11-12 07:06:34,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 6.5) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-12 07:06:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 601 transitions. [2024-11-12 07:06:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:34,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:34,148 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:34,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 07:06:34,149 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:34,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1873582456, now seen corresponding path program 1 times [2024-11-12 07:06:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:34,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228346128] [2024-11-12 07:06:34,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:34,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:34,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:34,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228346128] [2024-11-12 07:06:34,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228346128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:34,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:34,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-12 07:06:34,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576674584] [2024-11-12 07:06:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:34,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 07:06:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 07:06:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:06:34,693 INFO L87 Difference]: Start difference. First operand 499 states and 601 transitions. Second operand has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:35,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:35,335 INFO L93 Difference]: Finished difference Result 1013 states and 1225 transitions. [2024-11-12 07:06:35,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 07:06:35,336 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:35,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:35,340 INFO L225 Difference]: With dead ends: 1013 [2024-11-12 07:06:35,340 INFO L226 Difference]: Without dead ends: 643 [2024-11-12 07:06:35,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:06:35,341 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 87 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:35,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 2148 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 07:06:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-12 07:06:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 628. [2024-11-12 07:06:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 532 states have (on average 1.1766917293233083) internal successors, (626), 535 states have internal predecessors, (626), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 754 transitions. [2024-11-12 07:06:35,399 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 754 transitions. Word has length 129 [2024-11-12 07:06:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:35,400 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 754 transitions. [2024-11-12 07:06:35,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 754 transitions. [2024-11-12 07:06:35,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:35,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:35,401 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:35,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 07:06:35,401 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:35,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:35,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2028357830, now seen corresponding path program 1 times [2024-11-12 07:06:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:35,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913857946] [2024-11-12 07:06:35,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:35,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913857946] [2024-11-12 07:06:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913857946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:35,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:35,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:06:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265597657] [2024-11-12 07:06:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:35,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:06:35,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:06:35,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:06:35,956 INFO L87 Difference]: Start difference. First operand 628 states and 754 transitions. Second operand has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:36,265 INFO L93 Difference]: Finished difference Result 1274 states and 1528 transitions. [2024-11-12 07:06:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:06:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-12 07:06:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:36,268 INFO L225 Difference]: With dead ends: 1274 [2024-11-12 07:06:36,268 INFO L226 Difference]: Without dead ends: 771 [2024-11-12 07:06:36,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:36,269 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 136 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:36,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 983 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-12 07:06:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 606. [2024-11-12 07:06:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 510 states have (on average 1.1568627450980393) internal successors, (590), 513 states have internal predecessors, (590), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 718 transitions. [2024-11-12 07:06:36,370 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 718 transitions. Word has length 129 [2024-11-12 07:06:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:36,371 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 718 transitions. [2024-11-12 07:06:36,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.428571428571429) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 718 transitions. [2024-11-12 07:06:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:36,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:36,372 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:36,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 07:06:36,373 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:36,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1856979603, now seen corresponding path program 1 times [2024-11-12 07:06:36,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:36,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549773233] [2024-11-12 07:06:36,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:36,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:36,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549773233] [2024-11-12 07:06:36,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549773233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:36,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:36,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:06:36,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306187328] [2024-11-12 07:06:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:36,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:06:36,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:06:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:06:36,986 INFO L87 Difference]: Start difference. First operand 606 states and 718 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:37,310 INFO L93 Difference]: Finished difference Result 1142 states and 1356 transitions. [2024-11-12 07:06:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:06:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:37,314 INFO L225 Difference]: With dead ends: 1142 [2024-11-12 07:06:37,314 INFO L226 Difference]: Without dead ends: 665 [2024-11-12 07:06:37,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:06:37,316 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 138 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:37,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 902 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:06:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-12 07:06:37,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 588. [2024-11-12 07:06:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 492 states have (on average 1.1422764227642277) internal successors, (562), 495 states have internal predecessors, (562), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 690 transitions. [2024-11-12 07:06:37,377 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 690 transitions. Word has length 129 [2024-11-12 07:06:37,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:37,378 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 690 transitions. [2024-11-12 07:06:37,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:37,378 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 690 transitions. [2024-11-12 07:06:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:37,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:37,379 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:37,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 07:06:37,379 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:37,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:37,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2007595962, now seen corresponding path program 1 times [2024-11-12 07:06:37,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:37,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948146120] [2024-11-12 07:06:37,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:37,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948146120] [2024-11-12 07:06:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948146120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:37,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620944250] [2024-11-12 07:06:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:37,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:37,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:37,514 INFO L87 Difference]: Start difference. First operand 588 states and 690 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:37,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:37,696 INFO L93 Difference]: Finished difference Result 1097 states and 1288 transitions. [2024-11-12 07:06:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:37,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-12 07:06:37,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:37,699 INFO L225 Difference]: With dead ends: 1097 [2024-11-12 07:06:37,699 INFO L226 Difference]: Without dead ends: 638 [2024-11-12 07:06:37,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:37,700 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 89 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:37,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 579 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-12 07:06:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 561. [2024-11-12 07:06:37,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 465 states have (on average 1.1376344086021506) internal successors, (529), 468 states have internal predecessors, (529), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 657 transitions. [2024-11-12 07:06:37,760 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 657 transitions. Word has length 129 [2024-11-12 07:06:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:37,760 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 657 transitions. [2024-11-12 07:06:37,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 657 transitions. [2024-11-12 07:06:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:37,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:37,761 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:37,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 07:06:37,761 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:37,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:37,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1227247974, now seen corresponding path program 1 times [2024-11-12 07:06:37,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:37,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170173281] [2024-11-12 07:06:37,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:37,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:38,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:38,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170173281] [2024-11-12 07:06:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170173281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:38,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-12 07:06:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440116485] [2024-11-12 07:06:38,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:38,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 07:06:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 07:06:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:06:38,344 INFO L87 Difference]: Start difference. First operand 561 states and 657 transitions. Second operand has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:38,908 INFO L93 Difference]: Finished difference Result 1110 states and 1299 transitions. [2024-11-12 07:06:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 07:06:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:38,912 INFO L225 Difference]: With dead ends: 1110 [2024-11-12 07:06:38,912 INFO L226 Difference]: Without dead ends: 678 [2024-11-12 07:06:38,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:06:38,913 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:38,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2079 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 07:06:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-12 07:06:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 577. [2024-11-12 07:06:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 481 states have (on average 1.137214137214137) internal successors, (547), 484 states have internal predecessors, (547), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 675 transitions. [2024-11-12 07:06:38,977 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 675 transitions. Word has length 129 [2024-11-12 07:06:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:38,977 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 675 transitions. [2024-11-12 07:06:38,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 675 transitions. [2024-11-12 07:06:38,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:38,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:38,978 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:38,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 07:06:38,979 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:38,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1620274984, now seen corresponding path program 1 times [2024-11-12 07:06:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:38,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477686335] [2024-11-12 07:06:38,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:39,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:39,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477686335] [2024-11-12 07:06:39,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477686335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:39,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:39,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:06:39,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657241385] [2024-11-12 07:06:39,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:39,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:06:39,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:39,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:06:39,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:06:39,434 INFO L87 Difference]: Start difference. First operand 577 states and 675 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:39,891 INFO L93 Difference]: Finished difference Result 1235 states and 1442 transitions. [2024-11-12 07:06:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:06:39,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-12 07:06:39,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:39,901 INFO L225 Difference]: With dead ends: 1235 [2024-11-12 07:06:39,901 INFO L226 Difference]: Without dead ends: 787 [2024-11-12 07:06:39,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:06:39,902 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 142 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:39,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1081 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:06:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-12 07:06:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 575. [2024-11-12 07:06:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 479 states have (on average 1.129436325678497) internal successors, (541), 482 states have internal predecessors, (541), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 669 transitions. [2024-11-12 07:06:39,969 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 669 transitions. Word has length 129 [2024-11-12 07:06:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:39,969 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 669 transitions. [2024-11-12 07:06:39,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 669 transitions. [2024-11-12 07:06:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:39,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:39,970 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:39,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 07:06:39,971 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:39,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:39,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1378712399, now seen corresponding path program 1 times [2024-11-12 07:06:39,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:39,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595642072] [2024-11-12 07:06:39,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:39,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:40,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595642072] [2024-11-12 07:06:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595642072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:40,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:40,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 07:06:40,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605229377] [2024-11-12 07:06:40,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:40,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:06:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:06:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:40,713 INFO L87 Difference]: Start difference. First operand 575 states and 669 transitions. Second operand has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:41,335 INFO L93 Difference]: Finished difference Result 1152 states and 1340 transitions. [2024-11-12 07:06:41,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:06:41,336 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-12 07:06:41,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:41,338 INFO L225 Difference]: With dead ends: 1152 [2024-11-12 07:06:41,339 INFO L226 Difference]: Without dead ends: 706 [2024-11-12 07:06:41,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:06:41,340 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 107 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:41,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 991 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 07:06:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-12 07:06:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 559. [2024-11-12 07:06:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 463 states have (on average 1.1209503239740821) internal successors, (519), 466 states have internal predecessors, (519), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:41,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 647 transitions. [2024-11-12 07:06:41,423 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 647 transitions. Word has length 129 [2024-11-12 07:06:41,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:41,423 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 647 transitions. [2024-11-12 07:06:41,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-12 07:06:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 647 transitions. [2024-11-12 07:06:41,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-12 07:06:41,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:41,424 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:41,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 07:06:41,424 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:41,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:41,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1361261480, now seen corresponding path program 1 times [2024-11-12 07:06:41,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:41,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094167449] [2024-11-12 07:06:41,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:41,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:41,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094167449] [2024-11-12 07:06:41,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094167449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:41,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397604549] [2024-11-12 07:06:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:41,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:41,544 INFO L87 Difference]: Start difference. First operand 559 states and 647 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:41,723 INFO L93 Difference]: Finished difference Result 952 states and 1103 transitions. [2024-11-12 07:06:41,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:41,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-12 07:06:41,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:41,725 INFO L225 Difference]: With dead ends: 952 [2024-11-12 07:06:41,725 INFO L226 Difference]: Without dead ends: 522 [2024-11-12 07:06:41,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:41,727 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 86 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:41,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 582 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-12 07:06:41,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 520. [2024-11-12 07:06:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 424 states have (on average 1.1132075471698113) internal successors, (472), 427 states have internal predecessors, (472), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 600 transitions. [2024-11-12 07:06:41,801 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 600 transitions. Word has length 129 [2024-11-12 07:06:41,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:41,801 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 600 transitions. [2024-11-12 07:06:41,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 600 transitions. [2024-11-12 07:06:41,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-12 07:06:41,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:41,802 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:41,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-12 07:06:41,802 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:41,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1388191522, now seen corresponding path program 1 times [2024-11-12 07:06:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:41,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032924362] [2024-11-12 07:06:41,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:41,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:41,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:41,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032924362] [2024-11-12 07:06:41,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032924362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:41,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:41,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:41,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768067959] [2024-11-12 07:06:41,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:41,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:41,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:41,873 INFO L87 Difference]: Start difference. First operand 520 states and 600 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:41,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:41,971 INFO L93 Difference]: Finished difference Result 913 states and 1055 transitions. [2024-11-12 07:06:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:41,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-11-12 07:06:41,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:41,974 INFO L225 Difference]: With dead ends: 913 [2024-11-12 07:06:41,974 INFO L226 Difference]: Without dead ends: 522 [2024-11-12 07:06:41,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:41,975 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 66 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:41,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 465 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:41,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-12 07:06:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 520. [2024-11-12 07:06:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 424 states have (on average 1.0943396226415094) internal successors, (464), 427 states have internal predecessors, (464), 64 states have call successors, (64), 31 states have call predecessors, (64), 31 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-12 07:06:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 592 transitions. [2024-11-12 07:06:42,047 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 592 transitions. Word has length 131 [2024-11-12 07:06:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:42,047 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 592 transitions. [2024-11-12 07:06:42,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 592 transitions. [2024-11-12 07:06:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-12 07:06:42,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:42,048 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:42,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 07:06:42,048 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:42,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1501672288, now seen corresponding path program 1 times [2024-11-12 07:06:42,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:42,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165143799] [2024-11-12 07:06:42,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:42,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,453 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 72 proven. 12 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-12 07:06:42,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:42,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165143799] [2024-11-12 07:06:42,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165143799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:42,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158047649] [2024-11-12 07:06:42,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:42,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:42,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:42,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:42,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 07:06:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:42,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-12 07:06:42,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:42,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-12 07:06:42,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-12 07:06:42,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-12 07:06:42,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-12 07:06:43,026 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 29 treesize of output 13 [2024-11-12 07:06:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 233 proven. 51 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-12 07:06:43,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 72 proven. 15 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2024-11-12 07:06:43,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158047649] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:43,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:43,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 12] total 29 [2024-11-12 07:06:43,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695541432] [2024-11-12 07:06:43,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:43,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-12 07:06:43,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:43,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-12 07:06:43,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2024-11-12 07:06:43,628 INFO L87 Difference]: Start difference. First operand 520 states and 592 transitions. Second operand has 29 states, 22 states have (on average 4.909090909090909) internal successors, (108), 29 states have internal predecessors, (108), 13 states have call successors, (34), 4 states have call predecessors, (34), 9 states have return successors, (34), 6 states have call predecessors, (34), 13 states have call successors, (34) [2024-11-12 07:06:44,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:44,477 INFO L93 Difference]: Finished difference Result 923 states and 1041 transitions. [2024-11-12 07:06:44,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-12 07:06:44,478 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 22 states have (on average 4.909090909090909) internal successors, (108), 29 states have internal predecessors, (108), 13 states have call successors, (34), 4 states have call predecessors, (34), 9 states have return successors, (34), 6 states have call predecessors, (34), 13 states have call successors, (34) Word has length 136 [2024-11-12 07:06:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:44,480 INFO L225 Difference]: With dead ends: 923 [2024-11-12 07:06:44,480 INFO L226 Difference]: Without dead ends: 532 [2024-11-12 07:06:44,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 283 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-11-12 07:06:44,481 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 176 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:44,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 536 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 07:06:44,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-12 07:06:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 315. [2024-11-12 07:06:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 264 states have (on average 1.0909090909090908) internal successors, (288), 264 states have internal predecessors, (288), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 352 transitions. [2024-11-12 07:06:44,532 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 352 transitions. Word has length 136 [2024-11-12 07:06:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:44,532 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 352 transitions. [2024-11-12 07:06:44,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 22 states have (on average 4.909090909090909) internal successors, (108), 29 states have internal predecessors, (108), 13 states have call successors, (34), 4 states have call predecessors, (34), 9 states have return successors, (34), 6 states have call predecessors, (34), 13 states have call successors, (34) [2024-11-12 07:06:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 352 transitions. [2024-11-12 07:06:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-12 07:06:44,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:44,533 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:44,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 07:06:44,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:44,734 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:44,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:44,735 INFO L85 PathProgramCache]: Analyzing trace with hash -916891456, now seen corresponding path program 1 times [2024-11-12 07:06:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692469343] [2024-11-12 07:06:44,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:44,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114465913] [2024-11-12 07:06:44,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:44,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:44,791 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:44,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 07:06:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:45,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-12 07:06:45,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:45,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:45,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2024-11-12 07:06:45,182 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 19 treesize of output 1 [2024-11-12 07:06:45,185 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 19 treesize of output 1 [2024-11-12 07:06:45,186 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 19 treesize of output 1 [2024-11-12 07:06:45,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:45,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 26 [2024-11-12 07:06:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:45,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:45,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692469343] [2024-11-12 07:06:45,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:45,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114465913] [2024-11-12 07:06:45,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114465913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:45,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:45,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:06:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837969370] [2024-11-12 07:06:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:45,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:06:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:06:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:06:45,310 INFO L87 Difference]: Start difference. First operand 315 states and 352 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:45,550 INFO L93 Difference]: Finished difference Result 799 states and 885 transitions. [2024-11-12 07:06:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:06:45,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-12 07:06:45,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:45,552 INFO L225 Difference]: With dead ends: 799 [2024-11-12 07:06:45,552 INFO L226 Difference]: Without dead ends: 487 [2024-11-12 07:06:45,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:45,553 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 59 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:45,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 543 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:45,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-12 07:06:45,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 370. [2024-11-12 07:06:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 319 states have (on average 1.0721003134796239) internal successors, (342), 319 states have internal predecessors, (342), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 406 transitions. [2024-11-12 07:06:45,603 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 406 transitions. Word has length 136 [2024-11-12 07:06:45,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:45,603 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 406 transitions. [2024-11-12 07:06:45,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 406 transitions. [2024-11-12 07:06:45,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-12 07:06:45,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:45,604 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:45,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-12 07:06:45,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-12 07:06:45,804 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:45,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1279013824, now seen corresponding path program 1 times [2024-11-12 07:06:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:45,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823293518] [2024-11-12 07:06:45,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:45,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190050528] [2024-11-12 07:06:45,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:45,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:45,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:45,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:45,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 07:06:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:46,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-12 07:06:46,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:46,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2024-11-12 07:06:46,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:46,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2024-11-12 07:06:46,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:46,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-12 07:06:46,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:46,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 29 [2024-11-12 07:06:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 46 proven. 198 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-12 07:06:46,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:47,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:47,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823293518] [2024-11-12 07:06:47,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:47,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190050528] [2024-11-12 07:06:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190050528] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:47,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 07:06:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 26 [2024-11-12 07:06:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591507187] [2024-11-12 07:06:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:47,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:06:47,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:47,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:06:47,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-12 07:06:47,171 INFO L87 Difference]: Start difference. First operand 370 states and 406 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:47,754 INFO L93 Difference]: Finished difference Result 853 states and 934 transitions. [2024-11-12 07:06:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:06:47,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-12 07:06:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:47,758 INFO L225 Difference]: With dead ends: 853 [2024-11-12 07:06:47,758 INFO L226 Difference]: Without dead ends: 590 [2024-11-12 07:06:47,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-12 07:06:47,760 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 265 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:47,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 441 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:06:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-12 07:06:47,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 376. [2024-11-12 07:06:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 325 states have (on average 1.0707692307692307) internal successors, (348), 325 states have internal predecessors, (348), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 412 transitions. [2024-11-12 07:06:47,822 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 412 transitions. Word has length 137 [2024-11-12 07:06:47,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:47,823 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 412 transitions. [2024-11-12 07:06:47,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 412 transitions. [2024-11-12 07:06:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-12 07:06:47,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:47,824 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:47,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-12 07:06:48,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:48,025 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:48,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash -466731722, now seen corresponding path program 1 times [2024-11-12 07:06:48,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:48,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162239731] [2024-11-12 07:06:48,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:48,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-12 07:06:48,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162239731] [2024-11-12 07:06:48,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162239731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570846592] [2024-11-12 07:06:48,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:48,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:48,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:48,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:48,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 07:06:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:48,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-12 07:06:48,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:48,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-12 07:06:48,713 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 19 treesize of output 1 [2024-11-12 07:06:48,730 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 31 treesize of output 15 [2024-11-12 07:06:48,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:48,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 19 [2024-11-12 07:06:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-12 07:06:48,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:49,146 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2024-11-12 07:06:49,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570846592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 07:06:49,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 07:06:49,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-12 07:06:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562499618] [2024-11-12 07:06:49,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 07:06:49,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-12 07:06:49,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-12 07:06:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-12 07:06:49,148 INFO L87 Difference]: Start difference. First operand 376 states and 412 transitions. Second operand has 26 states, 20 states have (on average 5.1) internal successors, (102), 25 states have internal predecessors, (102), 9 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (21), 4 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-12 07:06:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:49,786 INFO L93 Difference]: Finished difference Result 622 states and 679 transitions. [2024-11-12 07:06:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 07:06:49,787 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 5.1) internal successors, (102), 25 states have internal predecessors, (102), 9 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (21), 4 states have call predecessors, (21), 9 states have call successors, (21) Word has length 137 [2024-11-12 07:06:49,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:49,788 INFO L225 Difference]: With dead ends: 622 [2024-11-12 07:06:49,788 INFO L226 Difference]: Without dead ends: 353 [2024-11-12 07:06:49,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 294 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2024-11-12 07:06:49,789 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 565 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:49,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 779 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 07:06:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-12 07:06:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2024-11-12 07:06:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 288 states have (on average 1.0659722222222223) internal successors, (307), 288 states have internal predecessors, (307), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 371 transitions. [2024-11-12 07:06:49,842 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 371 transitions. Word has length 137 [2024-11-12 07:06:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:49,842 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 371 transitions. [2024-11-12 07:06:49,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 5.1) internal successors, (102), 25 states have internal predecessors, (102), 9 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (21), 4 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-12 07:06:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 371 transitions. [2024-11-12 07:06:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-12 07:06:49,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:49,843 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:49,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 07:06:50,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-12 07:06:50,044 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:50,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -792964280, now seen corresponding path program 1 times [2024-11-12 07:06:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:50,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139552437] [2024-11-12 07:06:50,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:50,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:50,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121538940] [2024-11-12 07:06:50,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:50,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:50,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:50,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:50,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 07:06:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:50,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-12 07:06:50,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:50,288 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 19 treesize of output 1 [2024-11-12 07:06:50,289 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 19 treesize of output 1 [2024-11-12 07:06:50,291 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 19 treesize of output 1 [2024-11-12 07:06:50,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:50,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 35 [2024-11-12 07:06:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:50,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:50,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:50,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139552437] [2024-11-12 07:06:50,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:50,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121538940] [2024-11-12 07:06:50,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121538940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:50,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:50,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:06:50,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488026724] [2024-11-12 07:06:50,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:50,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:50,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:50,372 INFO L87 Difference]: Start difference. First operand 341 states and 371 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:50,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:50,593 INFO L93 Difference]: Finished difference Result 648 states and 706 transitions. [2024-11-12 07:06:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-12 07:06:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:50,595 INFO L225 Difference]: With dead ends: 648 [2024-11-12 07:06:50,595 INFO L226 Difference]: Without dead ends: 418 [2024-11-12 07:06:50,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:50,596 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 45 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:50,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 518 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:50,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-12 07:06:50,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 359. [2024-11-12 07:06:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 306 states have (on average 1.065359477124183) internal successors, (326), 306 states have internal predecessors, (326), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 390 transitions. [2024-11-12 07:06:50,648 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 390 transitions. Word has length 137 [2024-11-12 07:06:50,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:50,648 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 390 transitions. [2024-11-12 07:06:50,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 390 transitions. [2024-11-12 07:06:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-12 07:06:50,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:50,649 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:50,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-12 07:06:50,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-12 07:06:50,850 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:50,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash 935866485, now seen corresponding path program 1 times [2024-11-12 07:06:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:50,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909841407] [2024-11-12 07:06:50,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:50,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089919016] [2024-11-12 07:06:50,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:50,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:50,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:50,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:50,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 07:06:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:51,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-12 07:06:51,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:51,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:51,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 10 [2024-11-12 07:06:51,323 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 19 treesize of output 1 [2024-11-12 07:06:51,326 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 19 treesize of output 1 [2024-11-12 07:06:51,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:51,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-12 07:06:51,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:51,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 37 [2024-11-12 07:06:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:51,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:51,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:51,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909841407] [2024-11-12 07:06:51,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:51,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089919016] [2024-11-12 07:06:51,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089919016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:51,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:51,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:06:51,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33578225] [2024-11-12 07:06:51,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:51,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:06:51,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:06:51,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:06:51,769 INFO L87 Difference]: Start difference. First operand 359 states and 390 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:52,458 INFO L93 Difference]: Finished difference Result 738 states and 803 transitions. [2024-11-12 07:06:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:06:52,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-12 07:06:52,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:52,461 INFO L225 Difference]: With dead ends: 738 [2024-11-12 07:06:52,461 INFO L226 Difference]: Without dead ends: 490 [2024-11-12 07:06:52,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:06:52,462 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 122 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:52,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1036 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 07:06:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-12 07:06:52,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 364. [2024-11-12 07:06:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 311 states have (on average 1.0643086816720257) internal successors, (331), 311 states have internal predecessors, (331), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 395 transitions. [2024-11-12 07:06:52,520 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 395 transitions. Word has length 138 [2024-11-12 07:06:52,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:52,521 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 395 transitions. [2024-11-12 07:06:52,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 395 transitions. [2024-11-12 07:06:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-12 07:06:52,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:52,522 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:52,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-12 07:06:52,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-12 07:06:52,722 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:52,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash 271925311, now seen corresponding path program 1 times [2024-11-12 07:06:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196883068] [2024-11-12 07:06:52,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:52,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119144335] [2024-11-12 07:06:52,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:52,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:52,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:52,808 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:52,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 07:06:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:53,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-12 07:06:53,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:53,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-12 07:06:53,030 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 19 treesize of output 1 [2024-11-12 07:06:53,032 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 19 treesize of output 1 [2024-11-12 07:06:53,033 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 19 treesize of output 1 [2024-11-12 07:06:53,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:53,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 28 [2024-11-12 07:06:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:53,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 07:06:53,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:53,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196883068] [2024-11-12 07:06:53,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:53,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119144335] [2024-11-12 07:06:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119144335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:53,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:53,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:06:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588183239] [2024-11-12 07:06:53,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:53,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:53,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:53,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:53,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:53,109 INFO L87 Difference]: Start difference. First operand 364 states and 395 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:53,339 INFO L93 Difference]: Finished difference Result 724 states and 786 transitions. [2024-11-12 07:06:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:53,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-12 07:06:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:53,342 INFO L225 Difference]: With dead ends: 724 [2024-11-12 07:06:53,342 INFO L226 Difference]: Without dead ends: 471 [2024-11-12 07:06:53,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:53,342 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:53,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 466 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-12 07:06:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 358. [2024-11-12 07:06:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 305 states have (on average 1.0655737704918034) internal successors, (325), 305 states have internal predecessors, (325), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 389 transitions. [2024-11-12 07:06:53,399 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 389 transitions. Word has length 138 [2024-11-12 07:06:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:53,399 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 389 transitions. [2024-11-12 07:06:53,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 389 transitions. [2024-11-12 07:06:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-12 07:06:53,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:53,400 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:53,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 07:06:53,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-12 07:06:53,600 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:53,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash -410523147, now seen corresponding path program 1 times [2024-11-12 07:06:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:53,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954033806] [2024-11-12 07:06:53,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:53,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580909487] [2024-11-12 07:06:53,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:53,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:53,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:53,648 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:53,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-12 07:06:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:54,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-12 07:06:54,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:54,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-12 07:06:54,085 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 19 treesize of output 1 [2024-11-12 07:06:54,108 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 31 treesize of output 15 [2024-11-12 07:06:54,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:54,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 44 [2024-11-12 07:06:54,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:06:54,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 43 [2024-11-12 07:06:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-12 07:06:54,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:54,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:54,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954033806] [2024-11-12 07:06:54,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:54,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580909487] [2024-11-12 07:06:54,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580909487] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:54,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 07:06:54,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2024-11-12 07:06:54,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172068948] [2024-11-12 07:06:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:54,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:54,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-11-12 07:06:54,910 INFO L87 Difference]: Start difference. First operand 358 states and 389 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:55,146 INFO L93 Difference]: Finished difference Result 663 states and 721 transitions. [2024-11-12 07:06:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-12 07:06:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:55,148 INFO L225 Difference]: With dead ends: 663 [2024-11-12 07:06:55,148 INFO L226 Difference]: Without dead ends: 395 [2024-11-12 07:06:55,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:06:55,149 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 123 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:55,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 455 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-12 07:06:55,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 332. [2024-11-12 07:06:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 279 states have (on average 1.060931899641577) internal successors, (296), 279 states have internal predecessors, (296), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:55,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 360 transitions. [2024-11-12 07:06:55,206 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 360 transitions. Word has length 138 [2024-11-12 07:06:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:55,206 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 360 transitions. [2024-11-12 07:06:55,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 360 transitions. [2024-11-12 07:06:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:06:55,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:55,207 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:55,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-12 07:06:55,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:55,407 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:55,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1134112650, now seen corresponding path program 1 times [2024-11-12 07:06:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:55,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220601547] [2024-11-12 07:06:55,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:55,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:56,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:56,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220601547] [2024-11-12 07:06:56,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220601547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:56,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:56,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 07:06:56,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377050150] [2024-11-12 07:06:56,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:56,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 07:06:56,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:56,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 07:06:56,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:06:56,229 INFO L87 Difference]: Start difference. First operand 332 states and 360 transitions. Second operand has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:56,578 INFO L93 Difference]: Finished difference Result 385 states and 414 transitions. [2024-11-12 07:06:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 07:06:56,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-12 07:06:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:56,580 INFO L225 Difference]: With dead ends: 385 [2024-11-12 07:06:56,580 INFO L226 Difference]: Without dead ends: 383 [2024-11-12 07:06:56,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-12 07:06:56,581 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 29 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:56,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1421 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-12 07:06:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 364. [2024-11-12 07:06:56,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 311 states have (on average 1.0578778135048232) internal successors, (329), 311 states have internal predecessors, (329), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 393 transitions. [2024-11-12 07:06:56,639 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 393 transitions. Word has length 142 [2024-11-12 07:06:56,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:56,639 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 393 transitions. [2024-11-12 07:06:56,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 393 transitions. [2024-11-12 07:06:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:06:56,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:56,640 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:56,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-12 07:06:56,640 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:56,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1814171020, now seen corresponding path program 1 times [2024-11-12 07:06:56,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:56,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742889983] [2024-11-12 07:06:56,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:56,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742889983] [2024-11-12 07:06:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742889983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:56,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:56,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 07:06:56,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368926360] [2024-11-12 07:06:56,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:56,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:56,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:56,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:56,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:06:56,963 INFO L87 Difference]: Start difference. First operand 364 states and 393 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:57,089 INFO L93 Difference]: Finished difference Result 651 states and 700 transitions. [2024-11-12 07:06:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:06:57,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-12 07:06:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:57,091 INFO L225 Difference]: With dead ends: 651 [2024-11-12 07:06:57,091 INFO L226 Difference]: Without dead ends: 398 [2024-11-12 07:06:57,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:57,092 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 41 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:57,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 433 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:06:57,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-12 07:06:57,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 364. [2024-11-12 07:06:57,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 311 states have (on average 1.0546623794212218) internal successors, (328), 311 states have internal predecessors, (328), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 392 transitions. [2024-11-12 07:06:57,152 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 392 transitions. Word has length 142 [2024-11-12 07:06:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:57,153 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 392 transitions. [2024-11-12 07:06:57,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 07:06:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 392 transitions. [2024-11-12 07:06:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:06:57,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:57,154 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-12 07:06:57,154 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:57,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:57,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1156744904, now seen corresponding path program 1 times [2024-11-12 07:06:57,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:57,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218157472] [2024-11-12 07:06:57,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:57,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:57,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:57,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218157472] [2024-11-12 07:06:57,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218157472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:57,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:57,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:06:57,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712591669] [2024-11-12 07:06:57,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:57,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:06:57,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:06:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:06:57,543 INFO L87 Difference]: Start difference. First operand 364 states and 392 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:57,712 INFO L93 Difference]: Finished difference Result 644 states and 692 transitions. [2024-11-12 07:06:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:06:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2024-11-12 07:06:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:57,714 INFO L225 Difference]: With dead ends: 644 [2024-11-12 07:06:57,714 INFO L226 Difference]: Without dead ends: 391 [2024-11-12 07:06:57,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:06:57,715 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 41 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:57,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 556 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-12 07:06:57,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 366. [2024-11-12 07:06:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 313 states have (on average 1.0543130990415335) internal successors, (330), 313 states have internal predecessors, (330), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 394 transitions. [2024-11-12 07:06:57,773 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 394 transitions. Word has length 142 [2024-11-12 07:06:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:57,774 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 394 transitions. [2024-11-12 07:06:57,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-12 07:06:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 394 transitions. [2024-11-12 07:06:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-12 07:06:57,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:57,775 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:57,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-12 07:06:57,775 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:57,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:57,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1836803274, now seen corresponding path program 1 times [2024-11-12 07:06:57,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:57,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407793015] [2024-11-12 07:06:57,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:06:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:06:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:06:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:06:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:06:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:06:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:06:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:06:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:06:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:06:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:06:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 07:06:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 07:06:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:06:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 07:06:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-12 07:06:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-12 07:06:58,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:58,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407793015] [2024-11-12 07:06:58,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407793015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:06:58,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:06:58,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 07:06:58,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384918747] [2024-11-12 07:06:58,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:58,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 07:06:58,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:58,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 07:06:58,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-12 07:06:58,151 INFO L87 Difference]: Start difference. First operand 366 states and 394 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:06:58,434 INFO L93 Difference]: Finished difference Result 482 states and 525 transitions. [2024-11-12 07:06:58,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 07:06:58,435 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-11-12 07:06:58,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:06:58,436 INFO L225 Difference]: With dead ends: 482 [2024-11-12 07:06:58,436 INFO L226 Difference]: Without dead ends: 480 [2024-11-12 07:06:58,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-11-12 07:06:58,437 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 80 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 07:06:58,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2107 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 07:06:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-12 07:06:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 366. [2024-11-12 07:06:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 313 states have (on average 1.0543130990415335) internal successors, (330), 313 states have internal predecessors, (330), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-12 07:06:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 394 transitions. [2024-11-12 07:06:58,496 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 394 transitions. Word has length 142 [2024-11-12 07:06:58,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:06:58,497 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 394 transitions. [2024-11-12 07:06:58,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:06:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 394 transitions. [2024-11-12 07:06:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-12 07:06:58,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:06:58,498 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:06:58,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-12 07:06:58,498 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:06:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:06:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2146828546, now seen corresponding path program 1 times [2024-11-12 07:06:58,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:06:58,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487702802] [2024-11-12 07:06:58,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:58,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:06:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 07:06:58,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159408274] [2024-11-12 07:06:58,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:06:58,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:06:58,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:06:58,599 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:06:58,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-12 07:06:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:06:59,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-12 07:06:59,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:06:59,023 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 19 treesize of output 1 [2024-11-12 07:06:59,024 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 19 treesize of output 1 [2024-11-12 07:06:59,026 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 [2024-11-12 07:06:59,028 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 19 treesize of output 1 [2024-11-12 07:06:59,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-12 07:06:59,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-11-12 07:06:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2037 backedges. 346 proven. 6 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2024-11-12 07:06:59,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:06:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2037 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2024-11-12 07:06:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:06:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487702802] [2024-11-12 07:06:59,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 07:06:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159408274] [2024-11-12 07:06:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159408274] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 07:06:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 07:06:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-12 07:06:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477240777] [2024-11-12 07:06:59,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:06:59,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 07:06:59,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:06:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 07:06:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-12 07:06:59,755 INFO L87 Difference]: Start difference. First operand 366 states and 394 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:07:00,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:07:00,264 INFO L93 Difference]: Finished difference Result 720 states and 774 transitions. [2024-11-12 07:07:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 07:07:00,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 255 [2024-11-12 07:07:00,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:07:00,266 INFO L225 Difference]: With dead ends: 720 [2024-11-12 07:07:00,266 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 07:07:00,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:07:00,267 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 57 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:07:00,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 404 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:07:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 07:07:00,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 07:07:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 07:07:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 07:07:00,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 255 [2024-11-12 07:07:00,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:07:00,268 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 07:07:00,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-12 07:07:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 07:07:00,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 07:07:00,271 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-12 07:07:00,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-12 07:07:00,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:07:00,475 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:07:00,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.